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<h2>
<span class="refentrytitle">/</span>
</h2>
<p>/ —
Division operator.
</p>
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<div class="refsect1">
<a id="idm281472953065896"></a>
<h2>Description</h2>
<p>
Arithmetic operators perform operations of change-sign (negate), don't-change-sign, logical AND logical OR, add, subtract, multiply and divide. Note that a value or an expression may fall between two of these operators, either of which could take it as its left or right argument, as in
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<p><br />
a + b * c.<br />
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<p>
</p>
<p>
In such cases three rules apply:
</p>
<p>
1. * and <span class="emphasis"><em>/</em></span> bind to their neighbors more strongly than + and −. Thus the above expression is taken as
</p>
<div class="literallayout">
<p> <br />
a + (b * c)<br />
</p>
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<p>
with * taking b and c and then + taking a and b * c.
</p>
<p>
2. <span class="emphasis"><em>+</em></span> and <span class="emphasis"><em>−</em></span> bind more strongly than &&, which in turn is stronger than ||:
</p>
<div class="literallayout">
<p> <br />
a && b - c || d<br />
</p>
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<p>
is taken as
</p>
<div class="literallayout">
<p> <br />
(a && (b - c)) || d<br />
</p>
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<p>
</p>
<p>
3. When both operators bind equally strongly, the operations are done left to right:
</p>
<div class="literallayout">
<p> <br />
a - b - c<br />
</p>
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<p>
is taken as
</p>
<div class="literallayout">
<p> <br />
(a - b) - c<br />
</p>
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<p>
</p>
<p>
Parentheses may be used as above to force particular groupings.
</p>
</div>
<div class="refsect1">
<a id="idm281472953053416"></a>
<h2>Syntax</h2>
<pre class="synopsis">a <span class="command"><strong>/</strong></span> b (no rate restriction)</pre>
<p>
where the arguments <span class="emphasis"><em>a</em></span> and <span class="emphasis"><em>b</em></span> may be further expressions.
</p>
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<div class="refsect1">
<a id="idm281472953049896"></a>
<h2>Arguments</h2>
<p>
The arguments of / can be scalar values or k-rate one
dimensional arrays (vectors), or any combination. If one of the
arguments is an array, so is the value.
</p>
</div>
<div class="refsect1">
<a id="idm281472953048360"></a>
<h2>Examples</h2>
<p>
Here is an example of the / operator. It uses the file <a class="ulink" href="examples/divides.csd" target="_top"><em class="citetitle">divides.csd</em></a>.
</p>
<div class="example">
<a id="idm281472953046504"></a>
<p class="title">
<strong>Example 30. Example of the / operator.</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>
<div class="refsect1">
<a id="idm281472788667464"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></span>
<span class="c1">; Select audio/midi flags here according to platform</span>
-odac <span class="c1">;;;realtime audio out</span>
<span class="c1">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="c1">; For Non-realtime ouput leave only the line below:</span>
<span class="c1">; -o /.wav -W ;;; for file output any platform</span>
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="vg">sr</span> <span class="o">=</span> <span class="mi">44100</span>
<span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">32</span>
<span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">2</span>
<span class="vg">0dbfs</span> <span class="o">=</span> <span class="mi">1</span>
<span class="kd">instr</span> <span class="nf">1</span>
i<span class="n">div</span> <span class="o">=</span> <span class="mi">1</span><span class="o">/</span><span class="nb">p3</span> <span class="o">*</span> <span class="nb">p4</span>
k<span class="n">trm</span> <span class="nb">oscil</span> <span class="mi">1</span><span class="p">,</span> i<span class="n">div</span><span class="p">,</span> <span class="mi">1</span> <span class="c1">;use oscil as an envelope</span>
<span class="nb">printf</span> <span class="s">"retrigger rate per note duration = %f</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span> i<span class="n">div</span>
k<span class="n">ndx</span> <span class="nb">line</span> <span class="mi">5</span><span class="p">,</span> <span class="nb">p3</span><span class="p">,</span> <span class="mi">1</span> <span class="c1">;vary index of FM</span>
a<span class="n">sig</span> <span class="nb">foscil</span> k<span class="n">trm</span><span class="p">,</span> <span class="mi">200</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">1.4</span><span class="p">,</span> k<span class="n">ndx</span><span class="p">,</span> <span class="mi">1</span>
<span class="nb">outs</span> a<span class="n">sig</span><span class="p">,</span> a<span class="n">sig</span>
<span class="kd">endin</span>
<span class="nt"></CsInstruments></span>
<span class="nt"><CsScore></span>
<span class="nb">f</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">4096</span> <span class="mi">10</span> <span class="mi">1</span> <span class="c1">;sine wave</span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">3</span> <span class="mi">10</span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">4</span> <span class="mi">3</span> <span class="mi">15</span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">8</span> <span class="mi">3</span> <span class="mi">2</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
</div>
</div>
</div>
<p><br class="example-break" />
Its output should include lines like these:
</p>
<pre class="screen">
retrigger rate per note duration = 3.333333
retrigger rate per note duration = 5.000000
retrigger rate per note duration = 0.666667</pre>
<p>
</p>
</div>
<div class="refsect1">
<a id="idm281472953041480"></a>
<h2>See Also</h2>
<p>
<a class="link" href="subtracts.html" title="-"><em class="citetitle">-</em></a>,
<a class="link" href="adds.html" title="+"><em class="citetitle">+</em></a>,
<a class="link" href="opand.html" title="&&"><em class="citetitle">&&</em></a>,
<a class="link" href="opor.html" title="||"><em class="citetitle">||</em></a>,
<a class="link" href="multiplies.html" title="*"><em class="citetitle">*</em></a>,
<a class="link" href="raises.html" title="ˆ"><em class="citetitle">ˆ</em></a>,
<a class="link" href="modulus.html" title="%"><em class="citetitle">%</em></a>
</p>
</div>
<div class="refsect1">
<a id="idm281472953033608"></a>
<h2>Credits</h2>
<p>Arithmetic on vectors is new in version 6.00</p>
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