Mercurial > web-octave
diff index.md @ 217:6de5c7dcc43f
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.
author | Kai T. Ohlhus <k.ohlhus@gmail.com> |
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date | Tue, 15 Sep 2020 14:55:06 +0900 |
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--- /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">×</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">×</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">×</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">×</span> + </button> +</div>