<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>divz</title>
<link rel="stylesheet" type="text/css" href="csound.css" />
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1" />
<link rel="home" href="index.html" title="The Canonical Csound Reference Manual" />
<link rel="up" href="OpcodesTop.html" title="Orchestra Opcodes and Operators" />
<link rel="prev" href="distort1.html" title="distort1" />
<link rel="next" href="doppler.html" title="doppler" />
</head>
<body>
<div class="navheader">
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">divz</th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="distort1.html">Prev</a> </td>
<th width="60%" align="center">Orchestra Opcodes and Operators</th>
<td width="20%" align="right"> <a accesskey="n" href="doppler.html">Next</a></td>
</tr>
</table>
<hr />
</div>
<div class="refentry" title="divz">
<a id="divz"></a>
<div class="titlepage"></div>
<a id="IndexDivz" class="indexterm"></a>
<div class="refnamediv">
<h2>
<span class="refentrytitle">divz</span>
</h2>
<p>divz —
Safely divides two numbers.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp18528784"></a>
<h2>Syntax</h2>
<pre class="synopsis">ares <span class="command"><strong>divz</strong></span> xa, xb, ksubst</pre>
<pre class="synopsis">ires <span class="command"><strong>divz</strong></span> ia, ib, isubst</pre>
<pre class="synopsis">kres <span class="command"><strong>divz</strong></span> ka, kb, ksubst</pre>
</div>
<div class="refsect1" title="Description">
<a id="idp18540672"></a>
<h2>Description</h2>
<p>
Safely divides two numbers.
</p>
</div>
<div class="refsect1" title="Initialization">
<a id="idp18541376"></a>
<h2>Initialization</h2>
<p>
Whenever <span class="emphasis"><em>b</em></span> is not zero, set the result to the value <span class="emphasis"><em>a / b</em></span>; when <span class="emphasis"><em>b</em></span> is zero, set it to the value of <span class="emphasis"><em>subst</em></span> instead.
</p>
</div>
<div class="refsect1" title="Examples">
<a id="idp18542912"></a>
<h2>Examples</h2>
<p>
Here is an example of the divz opcode. It uses the file <a class="ulink" href="examples/divz.csd" target="_top"><em class="citetitle">divz.csd</em></a>.
</p>
<div class="example">
<a id="idp18543888"></a>
<p class="title">
<strong>Example 184. Example of the divz opcode.</strong>
</p>
<div class="example-contents">
<p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
<pre class="programlisting">
<span class="csdtag"><CsoundSynthesizer></span>
<span class="csdtag"><CsOptions></span>
<span class="comment">; Select audio/midi flags here according to platform</span>
<span class="comment">; Audio out Audio in</span>
-odac -iadc <span class="comment">;;;RT audio I/O</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o divz.wav -W ;;; for file output any platform</span>
<span class="csdtag"></CsOptions></span>
<span class="csdtag"><CsInstruments></span>
<span class="comment">; Initialize the global variables.</span>
<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">kr</span> <span class="op">=</span> 4410
<span class="ohdr">ksmps</span> <span class="op">=</span> 10
<span class="ohdr">nchnls</span> <span class="op">=</span> 1
<span class="comment">; Instrument #1.</span>
<span class="oblock">instr</span> 1
<span class="comment">; Define the numbers to be divided.</span>
ka <span class="opc">init</span> 200
<span class="comment">; Linearly change the value of kb from 200 to 0.</span>
kb <span class="opc">line</span> 0, p3, 200
<span class="comment">; If a "divide by zero" error occurs, substitute -1.</span>
ksubst <span class="opc">init</span> <span class="op">-</span>1
<span class="comment">; Safely divide the numbers.</span>
kresults <span class="opc">divz</span> ka, kb, ksubst
<span class="comment">; Print out the results.</span>
<span class="opc">printks</span> "<span class="op">%</span>f <span class="op">/</span> <span class="op">%</span>f <span class="op">=</span> <span class="op">%</span>f\\n", 0.1, ka, kb, kresults
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="comment">; Play Instrument #1 for one second.</span>
<span class="stamnt">i</span> 1 0 1
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
Its output should include lines like:
</p>
<pre class="screen">
200.000000 / 0.000000 = -1.000000
200.000000 / 19.999887 = 10.000056
200.000000 / 40.000027 = 4.999997</pre>
<p>
</p>
</div>
<div class="refsect1" title="See Also">
<a id="idp18580728"></a>
<h2>See Also</h2>
<p>
<a class="link" href="assign.html" title="="><em class="citetitle">=</em></a>,
<a class="link" href="init.html" title="init"><em class="citetitle">init</em></a>,
<a class="link" href="tival.html" title="tival"><em class="citetitle">tival</em></a>
</p>
</div>
<div class="refsect1" title="Credits">
<a id="idp18582760"></a>
<h2>Credits</h2>
<p>Author: John ffitch after an idea by Barry L. Vercoe</p>
<p>Example written by Kevin Conder.</p>
</div>
</div>
<div class="navfooter">
<hr />
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left"><a accesskey="p" href="distort1.html">Prev</a> </td>
<td width="20%" align="center">
<a accesskey="u" href="OpcodesTop.html">Up</a>
</td>
<td width="40%" align="right"> <a accesskey="n" href="doppler.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">distort1 </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> doppler</td>
</tr>
</table>
</div>
</body>
</html>
distrib
>
Mageia
>
5
>
x86_64
>
media
>
core-release
>
by-pkgid
>
b707d9a4ee443103660a75ccb6e51334
>
files
>
544
