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comparison index.md @ 88:45d807d2bfcc kai

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Revisit index start page.
author Kai T. Ohlhus <k.ohlhus@gmail.com>
date Mon, 17 Oct 2016 18:39:05 +0200
parents 5e297505996c
children
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87:1752b8520622 88:45d807d2bfcc
1 --- 1 ---
2 layout: default 2 layout: default
3 title: Home
4 menu: false
3 --- 5 ---
4 6
5 **[GNU Octave][1]** is a high-level interpreted language, 7 **[GNU Octave][1]** is a high-level interpreted language,
6 primarily intended for numerical computations, 8 primarily intended for numerical computations,
7 with built-in plotting and visualization capabilities. 9 with built-in plotting and visualization capabilities.
8 Many [Octave Forge packages][2] provide useful extensions for 10 Many [Octave Forge packages][2] provide useful extensions for
9 several scientific and engineering applications. 11 several scientific and engineering applications.
10 The GNU Octave language is quite similar to [Matlab][3] 12 The GNU Octave language is quite similar to [Matlab][3]
11 so that most programs are easily portable. 13 so that most programs are easily portable.
14 [Read more][4].
12 15
13 Octave is distributed under the terms of the 16 Octave is distributed under the terms of the
14 [GNU General Public License][4]. 17 [GNU General Public License][5].
15 18
16 [![GNU Octave 4.0.3 - Licensed under CC BY-SA 3.0][screen-small]][screen] 19 [![GNU Octave 4.0.3 Screenshot][screen-small]][screen]
17 20
18 [1]: http://www.octave.org 21 [1]: http://www.octave.org
19 [2]: http://octave.sourceforge.net/packages.php 22 [2]: http://octave.sourceforge.net/packages.php
20 [3]: https://www.mathworks.com/matlab 23 [3]: https://www.mathworks.com/matlab
21 [4]: {{ "license.html" | relative_url }} 24 [4]: {{ "about.html" | relative_url }}
25 [5]: {{ "license.html" | relative_url }}
22 [screen]: {{ "/img/screenshot-2016.png" | relative_url }} 26 [screen]: {{ "/img/screenshot-2016.png" | relative_url }}
23 [screen-small]: {{ "/img/screenshot-2016-small.png" | relative_url }} 27 [screen-small]: {{ "/img/screenshot-2016-small.png" | relative_url }}
24 28
25 29
26 30
27 --- 31 ---
28 32
29 # [{% octicon rss class:"octicon-rss-octave" %}][Feed] [News] 33 # [{% octicon rss class:"octicon-rss-octave" %}][Feed] [News]
30 34
31 {% for post in site.posts limit:3 %} 35 {% for post in site.posts limit:3 %}
32 - [{{ post.title }}]({{ post.url | relative_url }}) 36 - [**{{ post.title }}**]({{ post.url | relative_url }})
33 ({{ post.date | date: "%b %-d, %Y" }}) 37 ({{ post.date | date: "%b %-d, %Y" }})
34 38
35 <div class="news-content"> 39 <div class="news-content">
36 {{ post.excerpt }} 40 {{ post.excerpt }}
37 </div> 41 </div>
51 {% highlight octave %} 55 {% highlight octave %}
52 b = [4; 9; 2]; % Column vector 56 b = [4; 9; 2]; % Column vector
53 A = [ 3 4 5; 57 A = [ 3 4 5;
54 1 3 1; 58 1 3 1;
55 3 5 9 ]; 59 3 5 9 ];
56 x = A \ b % Solve $Ax = b$ by inverting A 60 x = A \ b % Solve $Ax = b$ by inverting A
57 {% endhighlight %} 61 {% endhighlight %}
58 62
59 - Visualize data with **high-level plot commands** in 2D and 3D: 63 - Visualize data with **high-level plot commands** in 2D and 3D:
60 64
61 {% highlight octave %} 65 {% highlight octave %}
62 % Create an evenly-spaced vector from -10 to 10 66 x = -10:0.1:10; % Create an evenly-spaced vector from -10 to 10
63 x = -10:0.1:10; 67 y = sin (x); % y is also a vector
64 y = sin(x); % y is also a vector 68 plot (x,y);
65 plot(x,y); 69 title ("Simple 2-D Plot");
66 title("Simple 2-D Plot"); 70 xlabel ("x");
67 xlabel("x"); 71 ylabel ("sin (x)");
68 ylabel("sin (x)");
69 {% endhighlight %} 72 {% endhighlight %}
70 73
71 [![Sine plot][plot]][plot] 74 [![Sine plot][plot]][plot]
72 75
73 [plot]: {{ "/img/plot.png" | relative_url }} 76 [plot]: {{ "/img/example-plot.png" | relative_url }}