Mercurial > web-octave
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author | Kai T. Ohlhus <k.ohlhus@gmail.com> |
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date | Fri, 10 Jul 2020 00:40:57 +0900 |
parents | 9b413d0dedde |
children | 370d7d0cdf7d |
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--- layout: default --- <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 medium-6"> <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 medium-8"> {% 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 medium-8"> {% 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>