husky-0.1: doc/usage.html
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<body>
<div class="document" id="husky-command-line-calculator">
<h1 class="title">husky command line calculator</h1>
<table class="docinfo" frame="void" rules="none">
<col class="docinfo-name" />
<col class="docinfo-content" />
<tbody valign="top">
<tr><th class="docinfo-name">Author:</th>
<td>Markus Dittrich</td></tr>
<tr><th class="docinfo-name">Version:</th>
<td>0.1 (02/18/2008)</td></tr>
</tbody>
</table>
<div class="section" id="introduction">
<h1>Introduction</h1>
<p>husky is a command line calculator with a small memory
footprint. It can be used in a fashion similar to the
interactive shells of python, octave, or ghci.</p>
<p>Currently, the mathematical operations "+", "-", "*", and
"/" are supported with arbitrary nesting of parenthesised
expressions. All calculations are performed in double
precision. In addition to the standard operations above,
the following functions are currently supported:</p>
<ul class="simple">
<li>sqrt : square root</li>
<li>a^n : exponentiation (n can be arbitrary double)</li>
<li>exp : exponential function</li>
<li>cos, sin, tan : trigonometric functions</li>
</ul>
<p>Furthermore, users can define any number of variables via</p>
<p><em>variable name</em> = value</p>
<p>where variable name can be any combination of alphanumeric
characters but has to begin with a letter. Hence, <em>foobar1</em>
is fine, but <em>1foobar</em> is not. Defined variables can be
used in expressions and definition of other variables.</p>
<p>Since husky uses the GNU readline library all readline
related functionality is available at husky's interactive
prompt (including command history). See <a class="footnote-reference" href="#id2" id="id1">[1]</a> for more
detail.</p>
<p>You can exit a husky session anytime by typing :q at
the command prompt.</p>
</div>
<div class="section" id="copyright-and-license">
<h1>COPYRIGHT and LICENSE</h1>
<p>(C) 2008-2009, Markus Dittrich</p>
<p>This program is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public
License Version 3 as published by the Free Software Foundation.</p>
<p>This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License Version 3 for more details.</p>
</div>
<div class="section" id="bugs">
<h1>BUGS</h1>
<p>Please report all bugs to <<a class="reference external" href="mailto:markusle@gmail.com">markusle@gmail.com</a>>. Thank you!</p>
</div>
<div class="section" id="references">
<h1>References</h1>
<table class="docutils footnote" frame="void" id="id2" rules="none">
<colgroup><col class="label" /><col /></colgroup>
<tbody valign="top">
<tr><td class="label"><a class="fn-backref" href="#id1">[1]</a></td><td>The GNU readline library
<a class="reference external" href="http://tiswww.case.edu/php/chet/readline/rltop.html">http://tiswww.case.edu/php/chet/readline/rltop.html</a></td></tr>
</tbody>
</table>
</div>
</div>
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