# HG changeset patch
# User Kai T. Ohlhus <k.ohlhus@gmail.com>
# Date 1600149306 -32400
# Node ID 6de5c7dcc43f2cf0213e06bcdb3860c6c85f908c
# Parent  c8126c010d67e6819c2cce3ee86a26fd82ce9cc0
maint: add "pages/menu" subfolder to get a better overview.

Pages in this folder have a menu entry at the top bar of the website.

diff -r c8126c010d67 -r 6de5c7dcc43f index.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/index.md	Tue Sep 15 14:55:06 2020 +0900
@@ -0,0 +1,158 @@
+---
+layout: default
+permalink: index
+---
+
+<div class="primary callout" data-closable>
+  <h5>
+    Need help? Try out our new user and developer forum
+    <a href="https://octave.discourse.group/">Octave Discourse</a>.
+  </h5>
+  <button class="close-button" aria-label="Dismiss alert" type="button" data-close>
+    <span aria-hidden="true">&times;</span>
+  </button>
+</div>
+
+<div class="grid-x grid-margin-x">
+  <div class="cell medium-6">
+    <a href="#"  data-open="meshModal">
+      <img src="{{ "/img/example-mesh.svg" | relative_url }}"
+            style="height: 400px; width: auto;" alt="Example mesh">
+    </a>
+  </div>
+  <div class="cell auto">
+    <h2 class="landing-page-logo">
+      <img src="{{ "/img/octave-logo.svg" | relative_url }}"
+            style="float: left; height: 48px; width: auto; padding-right: 0.5rem"
+            alt="GNU Octave logo">
+      GNU Octave
+    </h2>
+    <h4>Scientific Programming Language</h4>
+    <ul>
+      <li>Powerful mathematics-oriented syntax with built-in 2D/3D plotting and visualization tools</li>
+      <li>Free software, runs on GNU/Linux, macOS, BSD, and Microsoft Windows</li>
+      <li>Drop-in compatible with many Matlab scripts</li>
+    </ul>
+    <div class="button-group stacked">
+      <a href="{{ "download.html" | relative_url }}" class="button">Download</a>
+      <a href="{{ site.docs_url }}" class="button">Documentation</a>
+    </div>
+  </div>
+</div>
+
+### Syntax Examples
+
+The Octave syntax is largely compatible with Matlab.
+The Octave interpreter can be run in
+<a href="#" data-open="guiModal">GUI mode</a>, as a console,
+or invoked as part of a shell script.
+More Octave examples can be found in
+[the Octave wiki]({{ site.wiki_url }}/Using_Octave).
+
+<div class="grid-x grid-margin-x">
+  <div class="cell medium-4" >
+    <p>
+      Solve systems of equations with linear algebra operations on
+      <strong>vectors</strong> and <strong>matrices</strong>.
+    </p>
+  </div>
+  <div class="cell auto">
+{%- include code1.html -%}
+<!--
+{%- highlight octave -%}
+b = [4; 9; 2] # Column vector
+A = [ 3 4 5;
+      1 3 1;
+      3 5 9 ]
+x = A \ b     # Solve the system Ax = b
+{%- endhighlight -%}
+-->
+  </div>
+</div>
+
+<div class="grid-x grid-margin-x">
+  <div class="cell medium-4">
+    <p>
+      Visualize data with <strong>high-level plot commands</strong>
+      in 2D and 3D.
+    </p>
+  </div>
+  <div class="cell auto">
+{%- include code2.html -%}
+<!--
+{%- highlight octave -%}
+x = -10:0.1:10; # Create an evenly-spaced vector from -10..10
+y = sin (x);    # y is also a vector
+plot (x, y);
+title ("Simple 2-D Plot");
+xlabel ("x");
+ylabel ("sin (x)");
+{%- endhighlight -%}
+-->
+    <a href="#" class="button small-only-expanded" data-open="plotModal">Click here to see the plot output</a>
+  </div>
+</div>
+
+
+### Octave Forge
+
+[Octave Forge]({{ site.sourceforge_url }}) is a collection of high quality
+packages for GNU Octave, similar to Matlab's toolboxes.
+To install a package, use the `pkg` command from the Octave prompt by typing:
+
+{% highlight text %}
+pkg install -forge package_name
+pkg load package_name
+{% endhighlight %}
+
+<a href="{{ site.sourceforge_url }}/packages.php" class="button small-only-expanded">Browse Packages</a>
+
+
+### Development
+
+Octave is free software licensed under the
+[GNU General Public License (GPL)]({{ "license.html" | relative_url }}).
+Assuming you have Mercurial installed on your machine you may obtain the latest
+development version of Octave sources with the following command:
+
+{% highlight text %}
+hg clone https://www.octave.org/hg/octave
+{% endhighlight %}
+
+[Get involved]({{ "/get-involved.html" | relative_url }}) in Octave development.
+
+
+{% assign latest_post = site.posts.first %}
+{% if latest_post %}
+  <div class="primary callout">
+      <a class="float-right button tiny warning" href="{{ "/feed.xml" | relative_url }}">
+        RSS
+      </a>
+    <h3 class="entry-title">
+      <a href="{{ latest_post.url | relative_url }}">{{ latest_post.title }}</a>
+    </h3>
+    <p class="post-meta">{{ latest_post.date | date: "%b %-d, %Y" }}</p>
+    <div class="entry-content">{{ latest_post.excerpt }}</div>
+  </div>
+{% endif %}
+
+<div class="large reveal" id="meshModal" data-reveal>
+  <img src="{{ "/img/example-mesh.svg" | relative_url }}" alt="Example mesh">
+  <button class="close-button" data-close aria-label="Close modal" type="button">
+    <span aria-hidden="true">&times;</span>
+  </button>
+</div>
+
+<div class="large reveal" id="plotModal" data-reveal>
+  <img src="{{ "/img/example-plot.svg" | relative_url }}" alt="Example plot">
+  <button class="close-button" data-close aria-label="Close modal" type="button">
+    <span aria-hidden="true">&times;</span>
+  </button>
+</div>
+
+<div class="large reveal" id="guiModal" data-reveal>
+  <img src="{{ "/img/GNU_Octave_4-4-0_screenshot_1600x900.png" | relative_url }}" alt="GNU Octave GUI screenshot">
+  <button class="close-button" data-close aria-label="Close modal" type="button">
+    <span aria-hidden="true">&times;</span>
+  </button>
+</div>
diff -r c8126c010d67 -r 6de5c7dcc43f pages/about.md
--- a/pages/about.md	Tue Sep 15 14:51:27 2020 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,96 +0,0 @@
----
-layout: page
-title: About
-menu: true
-permalink: about
----
-
-GNU Octave is a high-level language, primarily intended for numerical
-computations.
-It provides a convenient command line interface for solving linear and
-nonlinear problems numerically,
-and for performing other numerical experiments using a language that is mostly
-compatible with Matlab.
-It may also be used as a batch-oriented language.
-
-Octave has extensive tools for solving common numerical linear algebra problems,
-finding the roots of nonlinear equations,
-integrating ordinary functions,
-manipulating polynomials,
-and integrating ordinary differential and differential-algebraic equations.
-It is easily extensible and customizable via user-defined functions written in
-Octave's own language,
-or using dynamically loaded modules written in C++, C, Fortran,
-or other languages.
-
-GNU Octave is also freely redistributable software.
-You may redistribute it and/or modify it under the terms of the
-[GNU General Public License (GPL)][GPL] as published by the
-[Free Software Foundation](https://www.fsf.org/).
-
-Octave was written by [John W. Eaton](mailto:jwe@octave.org) and
-[many others](https://hg.savannah.gnu.org/hgweb/octave/file/tip/doc/interpreter/contributors.in).
-Because Octave is [free software](https://www.gnu.org/philosophy/free-sw.html) you are encouraged to help make Octave
-more useful by writing and contributing additional functions for it,
-and by reporting any problems you may have.
-
-
-## History
-
-Octave was originally conceived (in about 1988) to be companion software for an
-undergraduate-level textbook on chemical reactor design being written by James
-B. Rawlings of the University of Wisconsin-Madison and John G. Ekerdt of the
-University of Texas.
-We originally envisioned some very specialized tools for the solution of
-chemical reactor design problems.
-Later,
-after seeing the limitations of that approach,
-we opted to attempt to build a much more flexible tool.
-
-There were still some people who said that we should just be using Fortran
-instead,
-because it is the computer language of engineering,
-but every time we had tried that,
-the students spent far too much time trying to figure out why their Fortran
-code failed and not enough time learning about chemical engineering.
-We believed that with an interactive environment like Octave,
-most students would be able to pick up the basics quickly,
-and begin using it confidently in just a few hours.
-
-Full-time development began in the Spring of 1992.
-The first alpha release was January 4, 1993, and version 1.0 was released
-February 17, 1994.
-Since then, Octave has been through several major revisions,
-is included with [Debian GNU/Linux](https://www.debian.org/),
-[openSUSE](https://www.opensuse.org/),
-and many other GNU/Linux distributions.
-Octave was reviewed in the in the July, 1997 issue of the
-[Linux Journal](http://www.linuxjournal.com/article/1225).
-
-Clearly,
-Octave is now much more than just another courseware package with limited
-utility beyond the classroom.
-Although our initial goals were somewhat vague,
-we knew that we wanted to create something that would enable students to solve
-realistic problems,
-and that they could use for many things other than chemical reactor design
-problems.
-Today, thousands of people worldwide are using Octave in teaching,
-research, and commercial applications.
-
-Just about everyone thinks that the name Octave has something to do with music,
-but it is actually the name of one of the author's former professor
-[Octave Levenspiel](https://en.wikipedia.org/wiki/Octave_Levenspiel)
-who wrote a famous textbook on chemical reaction engineering,
-and who was also well known for his ability to do quick "back of the envelope"
-calculations.
-We hope that this software will make it possible for many people to do more
-ambitious computations just as easily.
-
-Everyone is encouraged to share this software with others under the terms of
-the [GNU General Public License (GPL)][GPL].
-You are also encouraged to help make Octave more useful by writing and
-contributing additional functions for it,
-and by reporting any problems you may have.
-
-[GPL]: https://www.gnu.org/copyleft/gpl.html
diff -r c8126c010d67 -r 6de5c7dcc43f pages/bugs.md
--- a/pages/bugs.md	Tue Sep 15 14:51:27 2020 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,76 +0,0 @@
----
-layout: page
-title: Bugs
-menu: true
-permalink: bugs
----
-
-GNU Octave uses the bug tracker at [Savannah]({{ site.bugs_url }}).
-There you can [report a new bug]({{ site.bugs_url }}&func=additem),
-[browse recent bugs]({{ site.bugs_url }}),
-or [search for bugs]({{ site.bugs_url }}&func=search).
-
-### Guidelines for reporting a new bug
-
-1. **Is the bug already known?**
-
-   - [Search for already reported bugs at the bug tracker]({{ site.bugs_url }}&func=search),
-   - look at the
-     [list of known causes of trouble]({{ site.docs_url }}/Trouble.html)
-     in the Octave manual.
-
-   <p></p>
-
-   If you your problem **does not appear** to be known,
-   then you should report the problem.
-
-2. **Is it really a bug?**
-
-   - If Octave **crashes**, for any input whatever, that is a bug.
-     Reliable interpreters never crash.
-   - If Octave produces **incorrect results**, for any input whatever,
-     that is a bug.
-   - If Octave produces an **error message** for **valid input**, that is a bug.
-   - If Octave produces **no error message** for **invalid input**,
-     that is a bug.
-
-   <p></p>
-
-3. **Missing function in Octave**
-
-   - If the function is
-     [part of some Octave Forge package]({{ site.sourceforge_url }}/functions_by_alpha.php),
-     this is **not** a bug.
-   - If the function **exists in Matlab**,
-     but **not in core Octave** and **not in Octave Forge packages**,
-     that is a bug.
-
-   <p></p>
-
-   It might take several months or years until for new features to become part
-   of Octave, consider
-   [commercial support]({{ "commercial-support.html" | relative_url }})
-   if you don't want to wait that long).
-
-4. **Make your bug report count**
-
-   - **Report all the facts:**<br>
-     Include all information that make it possible to fix the bug.
-     If you are not sure whether to state a fact or leave it out, state it.
-     This information includes your **operating system**, **Octave version**,
-     **exact error message** or **exact output**.
-   - **Give a short, specific, complete example:**<br>
-     Avoid: pseudocode, uninitialized variables,
-     calls to unattached scripts or functions.
-   - **Justify your exectations briefly:**<br>
-     Although it might seem obvious to you,
-     someone examining the problem might not know what result you consider
-     correct.
-
-
-### Sending Patches for Octave
-
-If you have a suggested fix for a bug,
-please attach it to your report in the tracker.
-Your patch is more likely to be reviewed if you follow the guidelines from the
-Octave Wiki about the [creation of changesets]({{ site.wiki_url }}/Mercurial).
diff -r c8126c010d67 -r 6de5c7dcc43f pages/donate.md
--- a/pages/donate.md	Tue Sep 15 14:51:27 2020 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,30 +0,0 @@
----
-layout: page
-title: Donate
-menu: true
-permalink: donate
----
-
-> **Octave development takes a lot of time and expertise.**
-> **Your contributions help to ensure that Octave will continue to improve.**
-
-- [FSF Donation Page](https://crm.fsf.org/civicrm/contribute/transact?reset=1&id=10)
-- [PayPal](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=UYHVW7R596RZ8)
-  to John W. Eaton Consulting, Inc. (Octave project leader)
-- [Bitcoin](bitcoin:1E6HchBMX1EfiJQhSUanuF4VYKk552tEHF)
-  (1E6HchBMX1EfiJQhSUanuF4VYKk552tEHF)
-- [Commercial support options]({{ "commercial-support.html" | relative_url }})
-  to implement the specific features
-
-If you are already an Octave user and would like to see it improve more rapidly,
-then please donate so that we can spend more of our time working on Octave.
-If we could raise as little as $300,000/year,
-we could pay several key developers to work full time on Octave.
-Given even the most conservative estimate of the number of users of Octave,
-this amount could easily be reached if every user contributed the cost of
-a few lattes.
-
-If your company has a budget for numerical computing tools,
-consider spending 10% (or more!) of that on Octave.
-Do you expect Octave to improve on a $0 budget
-while the proprietary tools are well-funded by your license fees?
diff -r c8126c010d67 -r 6de5c7dcc43f pages/download.md
--- a/pages/download.md	Tue Sep 15 14:51:27 2020 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,131 +0,0 @@
----
-layout: page
-title: Download
-menu: true
-permalink: download
----
-
-<div class="button-group large expanded stacked-for-small">
-  <a class="button" href="#source">Source</a>
-  <a class="button" href="#linux">GNU/Linux</a>
-  <a class="button" href="#macos">macOS</a>
-  <a class="button" href="#bsd">BSD</a>
-  <a class="button" href="#ms-windows">MS Windows</a>
-</div>
-
-
-<p id="source">&nbsp;</p>
-
-### Source {#source2}
-
-The latest released version of Octave is always available from
-
-- https://ftp.gnu.org/gnu/octave
-- ftp://ftp.gnu.org/gnu/octave
-
-Please download from
-[https://ftpmirror.gnu.org/octave](https://ftpmirror.gnu.org/octave),
-which will redirect automatically to a nearby
-[mirror site](https://www.gnu.org/order/ftp.html).
-
-
-<p id="linux">&nbsp;</p>
-
-### GNU/Linux {#linux2}
-
-Packaged versions of Octave for GNU/Linux systems are provided by the
-individual distributions described in the
-[Octave wiki]({{ site.wiki_url }}/Category:Installation).
-These packages are created by volunteers.
-The delay between an Octave source release and the availability of a package
-for a particular GNU/Linux distribution varies.
-
-Alternatively,
-there are some distribution independent installation methods for more recent
-versions of GNU Octave described in the
-[Octave wiki]({{ site.wiki_url }}/Octave_for_GNU/Linux#Distribution_independent).
-
-
-<p id="macos">&nbsp;</p>
-
-### macOS {#macos2}
-
-The [Octave Wiki]({{ site.wiki_url }}/Octave_for_macOS) has instructions for
-installing Octave on macOS systems.
-Octave is also available in third-party package managers such as
-[Homebrew](https://brew.sh/) and [MacPorts](https://www.macports.org).
-
-
-<p id="bsd">&nbsp;</p>
-
-### BSD {#bsd2}
-
-Executable versions of Octave for BSD systems are provided by the individual
-distributions.
-Both [FreeBSD](https://www.freebsd.org/) and [OpenBSD](https://www.openbsd.org/)
-have Octave packages.
-These packages are created by volunteers and the Octave project has no control
-over that process.
-
-
-<p id="ms-windows">&nbsp;</p>
-
-### Microsoft Windows {#ms-windows2}
-
-<div class="primary callout small" data-closable>
-<b>Note:</b> All installers below bundle several <b>Octave Forge packages</b>
-so they don't have to be installed separately.
-After installation type <code>pkg list</code> to list them.
-<a href="{{ site.wiki_url }}/Octave_for_Microsoft_Windows">Read more.</a>
-<a href="#ms-windows" class="close-button" aria-label="Dismiss alert" type="button" data-close>
-  <span aria-hidden="true">&times;</span>
-</a>
-</div>
-
-- Windows-64 (recommended)
-  - [octave-5.2.0_1-w64-installer.exe](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-installer.exe)
-    (~ 300 MB)
-    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-installer.exe.sig)
-  - [octave-5.2.0_1-w64.7z](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64.7z)
-    (~ 300 MB)
-    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64.7z.sig)
-  - [octave-5.2.0_1-w64.zip](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64.zip)
-    (~ 530 MB)
-    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64.zip.sig)
-
-<p></p>
-
-- Windows-32 (old computers)
-  - [octave-5.2.0_1-w32-installer.exe](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32-installer.exe)
-    (~ 275 MB)
-    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32-installer.exe.sig)
-  - [octave-5.2.0_1-w32.7z](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32.7z)
-    (~ 258 MB)
-    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32.7z.sig)
-  - [octave-5.2.0_1-w32.zip](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32.zip)
-    (~ 447 MB)
-    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32.zip.sig)
-
-<p></p>
-
-- Windows-64 (64-bit linear algebra for large data)
-  <br><small>
-  Unless your computer has more than ~32GB of memory
-  <strong>and</strong> you need to solve linear algebra problems
-  with arrays containing more than ~2 billion elements, this
-  version will offer no advantage over the recommended Windows-64
-  version above.
-  </small>
-
-  - [octave-5.2.0_1-w64-64-installer.exe](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64-installer.exe)
-    (~ 286 MB)
-    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64-installer.exe.sig)
-  - [octave-5.2.0_1-w64-64.7z](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64.7z)
-    (~ 279 MB)
-    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64.7z.sig)
-  - [octave-5.2.0_1-w64-64.zip](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64.zip)
-    (~ 490 MB)
-    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64.zip.sig)
-
-All Windows binaries with corresponding source code can be downloaded from
-[https://ftpmirror.gnu.org/octave/windows/](https://ftpmirror.gnu.org/octave/windows/).
diff -r c8126c010d67 -r 6de5c7dcc43f pages/get-involved.md
--- a/pages/get-involved.md	Tue Sep 15 14:51:27 2020 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,45 +0,0 @@
----
-layout: page
-title: Get Involved
-menu: true
-permalink: get-involved
----
-
-We always need more help improving Octave
-and there are many ways you can contribute.
-You can help by fixing bugs,
-developing new features,
-writing [Octave Forge packages]({{ site.sourceforge_url }}),
-answering questions in Discourse,
-helping to improve the web pages.
-If you are wondering what to work on,
-we have a standard answer:
-**What would you like to work on?**
-
-For some inspiration,
-we do maintain a [list of possible projects]({{ site.wiki_url }}/Projects)
-and a [Developer FAQ]({{ site.wiki_url }}/Developer_FAQ) on the Octave Wiki.
-
-If know what to contribute,
-discuss your ideas with us on [Discourse]({{ site.discourse_url }})
-("maintainers" category) or on our IRC
-[Freenode `{{ site.irc_channel }}` channel](https://webchat.freenode.net/#octave).
-
-
-### Using the Development Sources
-
-The latest development sources of GNU Octave are available via
-[Mercurial](https://www.mercurial-scm.org/) (hg).
-The primary repository address is
-[https://www.octave.org/hg/octave](https://www.octave.org/hg/octave),
-which currently redirects to
-[https://hg.savannah.gnu.org/hgweb/octave](https://hg.savannah.gnu.org/hgweb/octave).
-You obtain the latest development version of Octave sources with the following
-command:
-
-{% highlight text %}
-hg clone https://www.octave.org/hg/octave
-{% endhighlight %}
-
-The [Developer FAQ]({{ site.wiki_url }}/Developer_FAQ) on the Octave Wiki
-contains more detailed and recent information about Octave development.
diff -r c8126c010d67 -r 6de5c7dcc43f pages/index.md
--- a/pages/index.md	Tue Sep 15 14:51:27 2020 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,158 +0,0 @@
----
-layout: default
-permalink: index
----
-
-<div class="primary callout" data-closable>
-  <h5>
-    Need help? Try out our new user and developer forum
-    <a href="https://octave.discourse.group/">Octave Discourse</a>.
-  </h5>
-  <button class="close-button" aria-label="Dismiss alert" type="button" data-close>
-    <span aria-hidden="true">&times;</span>
-  </button>
-</div>
-
-<div class="grid-x grid-margin-x">
-  <div class="cell medium-6">
-    <a href="#"  data-open="meshModal">
-      <img src="{{ "/img/example-mesh.svg" | relative_url }}"
-            style="height: 400px; width: auto;" alt="Example mesh">
-    </a>
-  </div>
-  <div class="cell auto">
-    <h2 class="landing-page-logo">
-      <img src="{{ "/img/octave-logo.svg" | relative_url }}"
-            style="float: left; height: 48px; width: auto; padding-right: 0.5rem"
-            alt="GNU Octave logo">
-      GNU Octave
-    </h2>
-    <h4>Scientific Programming Language</h4>
-    <ul>
-      <li>Powerful mathematics-oriented syntax with built-in 2D/3D plotting and visualization tools</li>
-      <li>Free software, runs on GNU/Linux, macOS, BSD, and Microsoft Windows</li>
-      <li>Drop-in compatible with many Matlab scripts</li>
-    </ul>
-    <div class="button-group stacked">
-      <a href="{{ "download.html" | relative_url }}" class="button">Download</a>
-      <a href="{{ site.docs_url }}" class="button">Documentation</a>
-    </div>
-  </div>
-</div>
-
-### Syntax Examples
-
-The Octave syntax is largely compatible with Matlab.
-The Octave interpreter can be run in
-<a href="#" data-open="guiModal">GUI mode</a>, as a console,
-or invoked as part of a shell script.
-More Octave examples can be found in
-[the Octave wiki]({{ site.wiki_url }}/Using_Octave).
-
-<div class="grid-x grid-margin-x">
-  <div class="cell medium-4" >
-    <p>
-      Solve systems of equations with linear algebra operations on
-      <strong>vectors</strong> and <strong>matrices</strong>.
-    </p>
-  </div>
-  <div class="cell auto">
-{%- include code1.html -%}
-<!--
-{%- highlight octave -%}
-b = [4; 9; 2] # Column vector
-A = [ 3 4 5;
-      1 3 1;
-      3 5 9 ]
-x = A \ b     # Solve the system Ax = b
-{%- endhighlight -%}
--->
-  </div>
-</div>
-
-<div class="grid-x grid-margin-x">
-  <div class="cell medium-4">
-    <p>
-      Visualize data with <strong>high-level plot commands</strong>
-      in 2D and 3D.
-    </p>
-  </div>
-  <div class="cell auto">
-{%- include code2.html -%}
-<!--
-{%- highlight octave -%}
-x = -10:0.1:10; # Create an evenly-spaced vector from -10..10
-y = sin (x);    # y is also a vector
-plot (x, y);
-title ("Simple 2-D Plot");
-xlabel ("x");
-ylabel ("sin (x)");
-{%- endhighlight -%}
--->
-    <a href="#" class="button small-only-expanded" data-open="plotModal">Click here to see the plot output</a>
-  </div>
-</div>
-
-
-### Octave Forge
-
-[Octave Forge]({{ site.sourceforge_url }}) is a collection of high quality
-packages for GNU Octave, similar to Matlab's toolboxes.
-To install a package, use the `pkg` command from the Octave prompt by typing:
-
-{% highlight text %}
-pkg install -forge package_name
-pkg load package_name
-{% endhighlight %}
-
-<a href="{{ site.sourceforge_url }}/packages.php" class="button small-only-expanded">Browse Packages</a>
-
-
-### Development
-
-Octave is free software licensed under the
-[GNU General Public License (GPL)]({{ "license.html" | relative_url }}).
-Assuming you have Mercurial installed on your machine you may obtain the latest
-development version of Octave sources with the following command:
-
-{% highlight text %}
-hg clone https://www.octave.org/hg/octave
-{% endhighlight %}
-
-[Get involved]({{ "/get-involved.html" | relative_url }}) in Octave development.
-
-
-{% assign latest_post = site.posts.first %}
-{% if latest_post %}
-  <div class="primary callout">
-      <a class="float-right button tiny warning" href="{{ "/feed.xml" | relative_url }}">
-        RSS
-      </a>
-    <h3 class="entry-title">
-      <a href="{{ latest_post.url | relative_url }}">{{ latest_post.title }}</a>
-    </h3>
-    <p class="post-meta">{{ latest_post.date | date: "%b %-d, %Y" }}</p>
-    <div class="entry-content">{{ latest_post.excerpt }}</div>
-  </div>
-{% endif %}
-
-<div class="large reveal" id="meshModal" data-reveal>
-  <img src="{{ "/img/example-mesh.svg" | relative_url }}" alt="Example mesh">
-  <button class="close-button" data-close aria-label="Close modal" type="button">
-    <span aria-hidden="true">&times;</span>
-  </button>
-</div>
-
-<div class="large reveal" id="plotModal" data-reveal>
-  <img src="{{ "/img/example-plot.svg" | relative_url }}" alt="Example plot">
-  <button class="close-button" data-close aria-label="Close modal" type="button">
-    <span aria-hidden="true">&times;</span>
-  </button>
-</div>
-
-<div class="large reveal" id="guiModal" data-reveal>
-  <img src="{{ "/img/GNU_Octave_4-4-0_screenshot_1600x900.png" | relative_url }}" alt="GNU Octave GUI screenshot">
-  <button class="close-button" data-close aria-label="Close modal" type="button">
-    <span aria-hidden="true">&times;</span>
-  </button>
-</div>
diff -r c8126c010d67 -r 6de5c7dcc43f pages/menu/about.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pages/menu/about.md	Tue Sep 15 14:55:06 2020 +0900
@@ -0,0 +1,96 @@
+---
+layout: page
+title: About
+menu: true
+permalink: about
+---
+
+GNU Octave is a high-level language, primarily intended for numerical
+computations.
+It provides a convenient command line interface for solving linear and
+nonlinear problems numerically,
+and for performing other numerical experiments using a language that is mostly
+compatible with Matlab.
+It may also be used as a batch-oriented language.
+
+Octave has extensive tools for solving common numerical linear algebra problems,
+finding the roots of nonlinear equations,
+integrating ordinary functions,
+manipulating polynomials,
+and integrating ordinary differential and differential-algebraic equations.
+It is easily extensible and customizable via user-defined functions written in
+Octave's own language,
+or using dynamically loaded modules written in C++, C, Fortran,
+or other languages.
+
+GNU Octave is also freely redistributable software.
+You may redistribute it and/or modify it under the terms of the
+[GNU General Public License (GPL)][GPL] as published by the
+[Free Software Foundation](https://www.fsf.org/).
+
+Octave was written by [John W. Eaton](mailto:jwe@octave.org) and
+[many others](https://hg.savannah.gnu.org/hgweb/octave/file/tip/doc/interpreter/contributors.in).
+Because Octave is [free software](https://www.gnu.org/philosophy/free-sw.html) you are encouraged to help make Octave
+more useful by writing and contributing additional functions for it,
+and by reporting any problems you may have.
+
+
+## History
+
+Octave was originally conceived (in about 1988) to be companion software for an
+undergraduate-level textbook on chemical reactor design being written by James
+B. Rawlings of the University of Wisconsin-Madison and John G. Ekerdt of the
+University of Texas.
+We originally envisioned some very specialized tools for the solution of
+chemical reactor design problems.
+Later,
+after seeing the limitations of that approach,
+we opted to attempt to build a much more flexible tool.
+
+There were still some people who said that we should just be using Fortran
+instead,
+because it is the computer language of engineering,
+but every time we had tried that,
+the students spent far too much time trying to figure out why their Fortran
+code failed and not enough time learning about chemical engineering.
+We believed that with an interactive environment like Octave,
+most students would be able to pick up the basics quickly,
+and begin using it confidently in just a few hours.
+
+Full-time development began in the Spring of 1992.
+The first alpha release was January 4, 1993, and version 1.0 was released
+February 17, 1994.
+Since then, Octave has been through several major revisions,
+is included with [Debian GNU/Linux](https://www.debian.org/),
+[openSUSE](https://www.opensuse.org/),
+and many other GNU/Linux distributions.
+Octave was reviewed in the in the July, 1997 issue of the
+[Linux Journal](http://www.linuxjournal.com/article/1225).
+
+Clearly,
+Octave is now much more than just another courseware package with limited
+utility beyond the classroom.
+Although our initial goals were somewhat vague,
+we knew that we wanted to create something that would enable students to solve
+realistic problems,
+and that they could use for many things other than chemical reactor design
+problems.
+Today, thousands of people worldwide are using Octave in teaching,
+research, and commercial applications.
+
+Just about everyone thinks that the name Octave has something to do with music,
+but it is actually the name of one of the author's former professor
+[Octave Levenspiel](https://en.wikipedia.org/wiki/Octave_Levenspiel)
+who wrote a famous textbook on chemical reaction engineering,
+and who was also well known for his ability to do quick "back of the envelope"
+calculations.
+We hope that this software will make it possible for many people to do more
+ambitious computations just as easily.
+
+Everyone is encouraged to share this software with others under the terms of
+the [GNU General Public License (GPL)][GPL].
+You are also encouraged to help make Octave more useful by writing and
+contributing additional functions for it,
+and by reporting any problems you may have.
+
+[GPL]: https://www.gnu.org/copyleft/gpl.html
diff -r c8126c010d67 -r 6de5c7dcc43f pages/menu/bugs.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pages/menu/bugs.md	Tue Sep 15 14:55:06 2020 +0900
@@ -0,0 +1,76 @@
+---
+layout: page
+title: Bugs
+menu: true
+permalink: bugs
+---
+
+GNU Octave uses the bug tracker at [Savannah]({{ site.bugs_url }}).
+There you can [report a new bug]({{ site.bugs_url }}&func=additem),
+[browse recent bugs]({{ site.bugs_url }}),
+or [search for bugs]({{ site.bugs_url }}&func=search).
+
+### Guidelines for reporting a new bug
+
+1. **Is the bug already known?**
+
+   - [Search for already reported bugs at the bug tracker]({{ site.bugs_url }}&func=search),
+   - look at the
+     [list of known causes of trouble]({{ site.docs_url }}/Trouble.html)
+     in the Octave manual.
+
+   <p></p>
+
+   If you your problem **does not appear** to be known,
+   then you should report the problem.
+
+2. **Is it really a bug?**
+
+   - If Octave **crashes**, for any input whatever, that is a bug.
+     Reliable interpreters never crash.
+   - If Octave produces **incorrect results**, for any input whatever,
+     that is a bug.
+   - If Octave produces an **error message** for **valid input**, that is a bug.
+   - If Octave produces **no error message** for **invalid input**,
+     that is a bug.
+
+   <p></p>
+
+3. **Missing function in Octave**
+
+   - If the function is
+     [part of some Octave Forge package]({{ site.sourceforge_url }}/functions_by_alpha.php),
+     this is **not** a bug.
+   - If the function **exists in Matlab**,
+     but **not in core Octave** and **not in Octave Forge packages**,
+     that is a bug.
+
+   <p></p>
+
+   It might take several months or years until for new features to become part
+   of Octave, consider
+   [commercial support]({{ "commercial-support.html" | relative_url }})
+   if you don't want to wait that long).
+
+4. **Make your bug report count**
+
+   - **Report all the facts:**<br>
+     Include all information that make it possible to fix the bug.
+     If you are not sure whether to state a fact or leave it out, state it.
+     This information includes your **operating system**, **Octave version**,
+     **exact error message** or **exact output**.
+   - **Give a short, specific, complete example:**<br>
+     Avoid: pseudocode, uninitialized variables,
+     calls to unattached scripts or functions.
+   - **Justify your exectations briefly:**<br>
+     Although it might seem obvious to you,
+     someone examining the problem might not know what result you consider
+     correct.
+
+
+### Sending Patches for Octave
+
+If you have a suggested fix for a bug,
+please attach it to your report in the tracker.
+Your patch is more likely to be reviewed if you follow the guidelines from the
+Octave Wiki about the [creation of changesets]({{ site.wiki_url }}/Mercurial).
diff -r c8126c010d67 -r 6de5c7dcc43f pages/menu/donate.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pages/menu/donate.md	Tue Sep 15 14:55:06 2020 +0900
@@ -0,0 +1,30 @@
+---
+layout: page
+title: Donate
+menu: true
+permalink: donate
+---
+
+> **Octave development takes a lot of time and expertise.**
+> **Your contributions help to ensure that Octave will continue to improve.**
+
+- [FSF Donation Page](https://crm.fsf.org/civicrm/contribute/transact?reset=1&id=10)
+- [PayPal](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=UYHVW7R596RZ8)
+  to John W. Eaton Consulting, Inc. (Octave project leader)
+- [Bitcoin](bitcoin:1E6HchBMX1EfiJQhSUanuF4VYKk552tEHF)
+  (1E6HchBMX1EfiJQhSUanuF4VYKk552tEHF)
+- [Commercial support options]({{ "commercial-support.html" | relative_url }})
+  to implement the specific features
+
+If you are already an Octave user and would like to see it improve more rapidly,
+then please donate so that we can spend more of our time working on Octave.
+If we could raise as little as $300,000/year,
+we could pay several key developers to work full time on Octave.
+Given even the most conservative estimate of the number of users of Octave,
+this amount could easily be reached if every user contributed the cost of
+a few lattes.
+
+If your company has a budget for numerical computing tools,
+consider spending 10% (or more!) of that on Octave.
+Do you expect Octave to improve on a $0 budget
+while the proprietary tools are well-funded by your license fees?
diff -r c8126c010d67 -r 6de5c7dcc43f pages/menu/download.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pages/menu/download.md	Tue Sep 15 14:55:06 2020 +0900
@@ -0,0 +1,131 @@
+---
+layout: page
+title: Download
+menu: true
+permalink: download
+---
+
+<div class="button-group large expanded stacked-for-small">
+  <a class="button" href="#source">Source</a>
+  <a class="button" href="#linux">GNU/Linux</a>
+  <a class="button" href="#macos">macOS</a>
+  <a class="button" href="#bsd">BSD</a>
+  <a class="button" href="#ms-windows">MS Windows</a>
+</div>
+
+
+<p id="source">&nbsp;</p>
+
+### Source {#source2}
+
+The latest released version of Octave is always available from
+
+- https://ftp.gnu.org/gnu/octave
+- ftp://ftp.gnu.org/gnu/octave
+
+Please download from
+[https://ftpmirror.gnu.org/octave](https://ftpmirror.gnu.org/octave),
+which will redirect automatically to a nearby
+[mirror site](https://www.gnu.org/order/ftp.html).
+
+
+<p id="linux">&nbsp;</p>
+
+### GNU/Linux {#linux2}
+
+Packaged versions of Octave for GNU/Linux systems are provided by the
+individual distributions described in the
+[Octave wiki]({{ site.wiki_url }}/Category:Installation).
+These packages are created by volunteers.
+The delay between an Octave source release and the availability of a package
+for a particular GNU/Linux distribution varies.
+
+Alternatively,
+there are some distribution independent installation methods for more recent
+versions of GNU Octave described in the
+[Octave wiki]({{ site.wiki_url }}/Octave_for_GNU/Linux#Distribution_independent).
+
+
+<p id="macos">&nbsp;</p>
+
+### macOS {#macos2}
+
+The [Octave Wiki]({{ site.wiki_url }}/Octave_for_macOS) has instructions for
+installing Octave on macOS systems.
+Octave is also available in third-party package managers such as
+[Homebrew](https://brew.sh/) and [MacPorts](https://www.macports.org).
+
+
+<p id="bsd">&nbsp;</p>
+
+### BSD {#bsd2}
+
+Executable versions of Octave for BSD systems are provided by the individual
+distributions.
+Both [FreeBSD](https://www.freebsd.org/) and [OpenBSD](https://www.openbsd.org/)
+have Octave packages.
+These packages are created by volunteers and the Octave project has no control
+over that process.
+
+
+<p id="ms-windows">&nbsp;</p>
+
+### Microsoft Windows {#ms-windows2}
+
+<div class="primary callout small" data-closable>
+<b>Note:</b> All installers below bundle several <b>Octave Forge packages</b>
+so they don't have to be installed separately.
+After installation type <code>pkg list</code> to list them.
+<a href="{{ site.wiki_url }}/Octave_for_Microsoft_Windows">Read more.</a>
+<a href="#ms-windows" class="close-button" aria-label="Dismiss alert" type="button" data-close>
+  <span aria-hidden="true">&times;</span>
+</a>
+</div>
+
+- Windows-64 (recommended)
+  - [octave-5.2.0_1-w64-installer.exe](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-installer.exe)
+    (~ 300 MB)
+    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-installer.exe.sig)
+  - [octave-5.2.0_1-w64.7z](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64.7z)
+    (~ 300 MB)
+    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64.7z.sig)
+  - [octave-5.2.0_1-w64.zip](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64.zip)
+    (~ 530 MB)
+    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64.zip.sig)
+
+<p></p>
+
+- Windows-32 (old computers)
+  - [octave-5.2.0_1-w32-installer.exe](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32-installer.exe)
+    (~ 275 MB)
+    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32-installer.exe.sig)
+  - [octave-5.2.0_1-w32.7z](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32.7z)
+    (~ 258 MB)
+    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32.7z.sig)
+  - [octave-5.2.0_1-w32.zip](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32.zip)
+    (~ 447 MB)
+    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w32.zip.sig)
+
+<p></p>
+
+- Windows-64 (64-bit linear algebra for large data)
+  <br><small>
+  Unless your computer has more than ~32GB of memory
+  <strong>and</strong> you need to solve linear algebra problems
+  with arrays containing more than ~2 billion elements, this
+  version will offer no advantage over the recommended Windows-64
+  version above.
+  </small>
+
+  - [octave-5.2.0_1-w64-64-installer.exe](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64-installer.exe)
+    (~ 286 MB)
+    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64-installer.exe.sig)
+  - [octave-5.2.0_1-w64-64.7z](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64.7z)
+    (~ 279 MB)
+    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64.7z.sig)
+  - [octave-5.2.0_1-w64-64.zip](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64.zip)
+    (~ 490 MB)
+    [[signature]](https://ftpmirror.gnu.org/octave/windows/octave-5.2.0_1-w64-64.zip.sig)
+
+All Windows binaries with corresponding source code can be downloaded from
+[https://ftpmirror.gnu.org/octave/windows/](https://ftpmirror.gnu.org/octave/windows/).
diff -r c8126c010d67 -r 6de5c7dcc43f pages/menu/get-involved.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pages/menu/get-involved.md	Tue Sep 15 14:55:06 2020 +0900
@@ -0,0 +1,45 @@
+---
+layout: page
+title: Get Involved
+menu: true
+permalink: get-involved
+---
+
+We always need more help improving Octave
+and there are many ways you can contribute.
+You can help by fixing bugs,
+developing new features,
+writing [Octave Forge packages]({{ site.sourceforge_url }}),
+answering questions in Discourse,
+helping to improve the web pages.
+If you are wondering what to work on,
+we have a standard answer:
+**What would you like to work on?**
+
+For some inspiration,
+we do maintain a [list of possible projects]({{ site.wiki_url }}/Projects)
+and a [Developer FAQ]({{ site.wiki_url }}/Developer_FAQ) on the Octave Wiki.
+
+If know what to contribute,
+discuss your ideas with us on [Discourse]({{ site.discourse_url }})
+("maintainers" category) or on our IRC
+[Freenode `{{ site.irc_channel }}` channel](https://webchat.freenode.net/#octave).
+
+
+### Using the Development Sources
+
+The latest development sources of GNU Octave are available via
+[Mercurial](https://www.mercurial-scm.org/) (hg).
+The primary repository address is
+[https://www.octave.org/hg/octave](https://www.octave.org/hg/octave),
+which currently redirects to
+[https://hg.savannah.gnu.org/hgweb/octave](https://hg.savannah.gnu.org/hgweb/octave).
+You obtain the latest development version of Octave sources with the following
+command:
+
+{% highlight text %}
+hg clone https://www.octave.org/hg/octave
+{% endhighlight %}
+
+The [Developer FAQ]({{ site.wiki_url }}/Developer_FAQ) on the Octave Wiki
+contains more detailed and recent information about Octave development.
diff -r c8126c010d67 -r 6de5c7dcc43f pages/menu/news.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pages/menu/news.md	Tue Sep 15 14:55:06 2020 +0900
@@ -0,0 +1,29 @@
+---
+layout: page
+title: News
+menu: true
+permalink: news
+---
+
+{% for post in site.posts %}
+<div class="primary callout">
+  {% if post == site.posts.first %}
+  <a class="float-right button tiny warning" href="{{ "/feed.xml" | relative_url }}">
+    RSS
+  </a>
+  {% endif %}
+  {% if post.title == "News Archive" %}
+  <h3 class="entry-title">
+    <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
+  </h3>
+  {% else %}
+  <h3 class="entry-title">
+    <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
+  </h3>
+  <p class="post-meta">{{ post.date | date: "%b %-d, %Y" }}</p>
+  <div class="entry-content">
+    {{ post.excerpt }}
+  </div>
+  {% endif %}
+</div>
+{% endfor %}
diff -r c8126c010d67 -r 6de5c7dcc43f pages/news.md
--- a/pages/news.md	Tue Sep 15 14:51:27 2020 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,29 +0,0 @@
----
-layout: page
-title: News
-menu: true
-permalink: news
----
-
-{% for post in site.posts %}
-<div class="primary callout">
-  {% if post == site.posts.first %}
-  <a class="float-right button tiny warning" href="{{ "/feed.xml" | relative_url }}">
-    RSS
-  </a>
-  {% endif %}
-  {% if post.title == "News Archive" %}
-  <h3 class="entry-title">
-    <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
-  </h3>
-  {% else %}
-  <h3 class="entry-title">
-    <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
-  </h3>
-  <p class="post-meta">{{ post.date | date: "%b %-d, %Y" }}</p>
-  <div class="entry-content">
-    {{ post.excerpt }}
-  </div>
-  {% endif %}
-</div>
-{% endfor %}
diff -r c8126c010d67 -r 6de5c7dcc43f pages/support.md
--- a/pages/support.md	Tue Sep 15 14:51:27 2020 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,48 +0,0 @@
----
-layout: page
-title: Support/Help
-menu: true
-permalink: support
----
-
-#### Contact the **user community**
-
-<div style="margin-left: 2em;" markdown="1">
-The Octave user community is a loosely organized association of **volunteers**.
-Your interactions with the community will be better if you have the
-[right expectations about the support options]({{ "support-expectations.html" | relative_url }})
-available to you.
-</div>
-
-<div style="margin-left: 2em;" markdown="1">
-- [**Discourse**]({{ site.discourse_url }}) &mdash;
-  the main chat portal for Octave users and developers.
-- **IRC**: Chat with users and developers on the
-  [Freenode `{{ site.irc_channel }}` channel](https://webchat.freenode.net/#octave).
-- Browse the
-  [**mailing list archives**](https://lists.gnu.org/archive/html/help-octave/).
-</div>
-
-
-#### Get [**commercial support**]({{ "commercial-support.html" | relative_url }})
-
-<div style="margin-left: 2em;" markdown="1">
-- Setup assistance
-- Custom feature implementation
-</div>
-
-
-#### Read the **GNU Octave Manual**
-
-<div style="margin-left: 2em;" markdown="1">
-- [Web version]({{ site.docs_url }})
-- [PDF version]({{ "octave.pdf" | relative_url }})
-- Type `doc` inside Octave
-</div>
-
-
-#### Browse the [Octave Wiki]({{ site.wiki_url }})
-
-<div style="margin-left: 2em;" markdown="1">
-- Read [Frequently Asked Questions (FAQ)]({{ site.faq_url }})
-</div>