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Previous: <a rel="previous" accesskey="p" href="Complex-Arithmetic.html#Complex-Arithmetic">Complex Arithmetic</a>,
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<h3 class="section">17.3 Trigonometry</h3>
<p>Octave provides the following trigonometric functions where angles are
specified in radians. To convert from degrees to radians multiply by
<code>pi/180</code>
(e.g., <code>sin (30 * pi/180)</code> returns the sine of 30 degrees). As
an alternative, Octave provides a number of trigonometric functions
which work directly on an argument specified in degrees. These functions
are named after the base trigonometric function with a ‘<samp><span class="samp">d</span></samp>’ suffix. For
example, <code>sin</code> expects an angle in radians while <code>sind</code> expects an
angle in degrees.
<!-- sin src/mappers.cc -->
<p><a name="doc_002dsin"></a>
<div class="defun">
— Mapping Function: <b>sin</b> (<var>x</var>)<var><a name="index-sin-1800"></a></var><br>
<blockquote><p>Compute the sine for each element of <var>x</var> in radians.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dasin.html#doc_002dasin">asin</a>, <a href="doc_002dsind.html#doc_002dsind">sind</a>, <a href="doc_002dsinh.html#doc_002dsinh">sinh</a>.
</p></blockquote></div>
<!-- cos src/mappers.cc -->
<p><a name="doc_002dcos"></a>
<div class="defun">
— Mapping Function: <b>cos</b> (<var>x</var>)<var><a name="index-cos-1801"></a></var><br>
<blockquote><p>Compute the cosine for each element of <var>x</var> in radians.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dacos.html#doc_002dacos">acos</a>, <a href="doc_002dcosd.html#doc_002dcosd">cosd</a>, <a href="doc_002dcosh.html#doc_002dcosh">cosh</a>.
</p></blockquote></div>
<!-- tan src/mappers.cc -->
<p><a name="doc_002dtan"></a>
<div class="defun">
— Mapping Function: <b>tan</b> (<var>z</var>)<var><a name="index-tan-1802"></a></var><br>
<blockquote><p>Compute the tangent for each element of <var>x</var> in radians.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002datan.html#doc_002datan">atan</a>, <a href="doc_002dtand.html#doc_002dtand">tand</a>, <a href="doc_002dtanh.html#doc_002dtanh">tanh</a>.
</p></blockquote></div>
<!-- sec scripts/elfun/sec.m -->
<p><a name="doc_002dsec"></a>
<div class="defun">
— Mapping Function: <b>sec</b> (<var>x</var>)<var><a name="index-sec-1803"></a></var><br>
<blockquote><p>Compute the secant for each element of <var>x</var> in radians.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dasec.html#doc_002dasec">asec</a>, <a href="doc_002dsecd.html#doc_002dsecd">secd</a>, <a href="doc_002dsech.html#doc_002dsech">sech</a>.
</p></blockquote></div>
<!-- csc scripts/elfun/csc.m -->
<p><a name="doc_002dcsc"></a>
<div class="defun">
— Mapping Function: <b>csc</b> (<var>x</var>)<var><a name="index-csc-1804"></a></var><br>
<blockquote><p>Compute the cosecant for each element of <var>x</var> in radians.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dacsc.html#doc_002dacsc">acsc</a>, <a href="doc_002dcscd.html#doc_002dcscd">cscd</a>, <a href="doc_002dcsch.html#doc_002dcsch">csch</a>.
</p></blockquote></div>
<!-- cot scripts/elfun/cot.m -->
<p><a name="doc_002dcot"></a>
<div class="defun">
— Mapping Function: <b>cot</b> (<var>x</var>)<var><a name="index-cot-1805"></a></var><br>
<blockquote><p>Compute the cotangent for each element of <var>x</var> in radians.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dacot.html#doc_002dacot">acot</a>, <a href="doc_002dcotd.html#doc_002dcotd">cotd</a>, <a href="doc_002dcoth.html#doc_002dcoth">coth</a>.
</p></blockquote></div>
<!-- asin src/mappers.cc -->
<p><a name="doc_002dasin"></a>
<div class="defun">
— Mapping Function: <b>asin</b> (<var>x</var>)<var><a name="index-asin-1806"></a></var><br>
<blockquote><p>Compute the inverse sine in radians for each element of <var>x</var>.
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dsin.html#doc_002dsin">sin</a>, <a href="doc_002dasind.html#doc_002dasind">asind</a>.
</p></blockquote></div>
<!-- acos src/mappers.cc -->
<p><a name="doc_002dacos"></a>
<div class="defun">
— Mapping Function: <b>acos</b> (<var>x</var>)<var><a name="index-acos-1807"></a></var><br>
<blockquote><p>Compute the inverse cosine in radians for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dcos.html#doc_002dcos">cos</a>, <a href="doc_002dacosd.html#doc_002dacosd">acosd</a>.
</p></blockquote></div>
<!-- atan src/mappers.cc -->
<p><a name="doc_002datan"></a>
<div class="defun">
— Mapping Function: <b>atan</b> (<var>x</var>)<var><a name="index-atan-1808"></a></var><br>
<blockquote><p>Compute the inverse tangent in radians for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dtan.html#doc_002dtan">tan</a>, <a href="doc_002datand.html#doc_002datand">atand</a>.
</p></blockquote></div>
<!-- asec scripts/elfun/asec.m -->
<p><a name="doc_002dasec"></a>
<div class="defun">
— Mapping Function: <b>asec</b> (<var>x</var>)<var><a name="index-asec-1809"></a></var><br>
<blockquote><p>Compute the inverse secant in radians for each element of <var>x</var>.
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dsec.html#doc_002dsec">sec</a>, <a href="doc_002dasecd.html#doc_002dasecd">asecd</a>.
</p></blockquote></div>
<!-- acsc scripts/elfun/acsc.m -->
<p><a name="doc_002dacsc"></a>
<div class="defun">
— Mapping Function: <b>acsc</b> (<var>x</var>)<var><a name="index-acsc-1810"></a></var><br>
<blockquote><p>Compute the inverse cosecant in radians for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dcsc.html#doc_002dcsc">csc</a>, <a href="doc_002dacscd.html#doc_002dacscd">acscd</a>.
</p></blockquote></div>
<!-- acot scripts/elfun/acot.m -->
<p><a name="doc_002dacot"></a>
<div class="defun">
— Mapping Function: <b>acot</b> (<var>x</var>)<var><a name="index-acot-1811"></a></var><br>
<blockquote><p>Compute the inverse cotangent in radians for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dcot.html#doc_002dcot">cot</a>, <a href="doc_002dacotd.html#doc_002dacotd">acotd</a>.
</p></blockquote></div>
<!-- sinh src/mappers.cc -->
<p><a name="doc_002dsinh"></a>
<div class="defun">
— Mapping Function: <b>sinh</b> (<var>x</var>)<var><a name="index-sinh-1812"></a></var><br>
<blockquote><p>Compute the hyperbolic sine for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dasinh.html#doc_002dasinh">asinh</a>, <a href="doc_002dcosh.html#doc_002dcosh">cosh</a>, <a href="doc_002dtanh.html#doc_002dtanh">tanh</a>.
</p></blockquote></div>
<!-- cosh src/mappers.cc -->
<p><a name="doc_002dcosh"></a>
<div class="defun">
— Mapping Function: <b>cosh</b> (<var>x</var>)<var><a name="index-cosh-1813"></a></var><br>
<blockquote><p>Compute the hyperbolic cosine for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dacosh.html#doc_002dacosh">acosh</a>, <a href="doc_002dsinh.html#doc_002dsinh">sinh</a>, <a href="doc_002dtanh.html#doc_002dtanh">tanh</a>.
</p></blockquote></div>
<!-- tanh src/mappers.cc -->
<p><a name="doc_002dtanh"></a>
<div class="defun">
— Mapping Function: <b>tanh</b> (<var>x</var>)<var><a name="index-tanh-1814"></a></var><br>
<blockquote><p>Compute hyperbolic tangent for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002datanh.html#doc_002datanh">atanh</a>, <a href="doc_002dsinh.html#doc_002dsinh">sinh</a>, <a href="doc_002dcosh.html#doc_002dcosh">cosh</a>.
</p></blockquote></div>
<!-- sech scripts/elfun/sech.m -->
<p><a name="doc_002dsech"></a>
<div class="defun">
— Mapping Function: <b>sech</b> (<var>x</var>)<var><a name="index-sech-1815"></a></var><br>
<blockquote><p>Compute the hyperbolic secant of each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dasech.html#doc_002dasech">asech</a>.
</p></blockquote></div>
<!-- csch scripts/elfun/csch.m -->
<p><a name="doc_002dcsch"></a>
<div class="defun">
— Mapping Function: <b>csch</b> (<var>x</var>)<var><a name="index-csch-1816"></a></var><br>
<blockquote><p>Compute the hyperbolic cosecant of each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dacsch.html#doc_002dacsch">acsch</a>.
</p></blockquote></div>
<!-- coth scripts/elfun/coth.m -->
<p><a name="doc_002dcoth"></a>
<div class="defun">
— Mapping Function: <b>coth</b> (<var>x</var>)<var><a name="index-coth-1817"></a></var><br>
<blockquote><p>Compute the hyperbolic cotangent of each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dacoth.html#doc_002dacoth">acoth</a>.
</p></blockquote></div>
<!-- asinh src/mappers.cc -->
<p><a name="doc_002dasinh"></a>
<div class="defun">
— Mapping Function: <b>asinh</b> (<var>x</var>)<var><a name="index-asinh-1818"></a></var><br>
<blockquote><p>Compute the inverse hyperbolic sine for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dsinh.html#doc_002dsinh">sinh</a>.
</p></blockquote></div>
<!-- acosh src/mappers.cc -->
<p><a name="doc_002dacosh"></a>
<div class="defun">
— Mapping Function: <b>acosh</b> (<var>x</var>)<var><a name="index-acosh-1819"></a></var><br>
<blockquote><p>Compute the inverse hyperbolic cosine for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dcosh.html#doc_002dcosh">cosh</a>.
</p></blockquote></div>
<!-- atanh src/mappers.cc -->
<p><a name="doc_002datanh"></a>
<div class="defun">
— Mapping Function: <b>atanh</b> (<var>x</var>)<var><a name="index-atanh-1820"></a></var><br>
<blockquote><p>Compute the inverse hyperbolic tangent for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dtanh.html#doc_002dtanh">tanh</a>.
</p></blockquote></div>
<!-- asech scripts/elfun/asech.m -->
<p><a name="doc_002dasech"></a>
<div class="defun">
— Mapping Function: <b>asech</b> (<var>x</var>)<var><a name="index-asech-1821"></a></var><br>
<blockquote><p>Compute the inverse hyperbolic secant of each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dsech.html#doc_002dsech">sech</a>.
</p></blockquote></div>
<!-- acsch scripts/elfun/acsch.m -->
<p><a name="doc_002dacsch"></a>
<div class="defun">
— Mapping Function: <b>acsch</b> (<var>x</var>)<var><a name="index-acsch-1822"></a></var><br>
<blockquote><p>Compute the inverse hyperbolic cosecant of each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dcsch.html#doc_002dcsch">csch</a>.
</p></blockquote></div>
<!-- acoth scripts/elfun/acoth.m -->
<p><a name="doc_002dacoth"></a>
<div class="defun">
— Mapping Function: <b>acoth</b> (<var>x</var>)<var><a name="index-acoth-1823"></a></var><br>
<blockquote><p>Compute the inverse hyperbolic cotangent of each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dcoth.html#doc_002dcoth">coth</a>.
</p></blockquote></div>
<!-- atan2 src/data.cc -->
<p><a name="doc_002datan2"></a>
<div class="defun">
— Mapping Function: <b>atan2</b> (<var>y, x</var>)<var><a name="index-atan2-1824"></a></var><br>
<blockquote><p>Compute atan (<var>y</var> / <var>x</var>) for corresponding elements of <var>y</var>
and <var>x</var>. Signal an error if <var>y</var> and <var>x</var> do not match in size
and orientation.
</p></blockquote></div>
<p>Octave provides the following trigonometric functions where angles are
specified in degrees. These functions produce true zeros at the appropriate
intervals rather than the small round-off error that occurs when using
radians. For example:
<pre class="example"> cosd (90)
⇒ 0
cos (pi/2)
⇒ 6.1230e-17
</pre>
<!-- sind scripts/elfun/sind.m -->
<p><a name="doc_002dsind"></a>
<div class="defun">
— Function File: <b>sind</b> (<var>x</var>)<var><a name="index-sind-1825"></a></var><br>
<blockquote><p>Compute the sine for each element of <var>x</var> in degrees. Returns zero
for elements where <var>x</var><code>/180</code> is an integer.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dasind.html#doc_002dasind">asind</a>, <a href="doc_002dsin.html#doc_002dsin">sin</a>.
</p></blockquote></div>
<!-- cosd scripts/elfun/cosd.m -->
<p><a name="doc_002dcosd"></a>
<div class="defun">
— Function File: <b>cosd</b> (<var>x</var>)<var><a name="index-cosd-1826"></a></var><br>
<blockquote><p>Compute the cosine for each element of <var>x</var> in degrees. Returns zero
for elements where <code>(</code><var>x</var><code>-90)/180</code> is an integer.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dacosd.html#doc_002dacosd">acosd</a>, <a href="doc_002dcos.html#doc_002dcos">cos</a>.
</p></blockquote></div>
<!-- tand scripts/elfun/tand.m -->
<p><a name="doc_002dtand"></a>
<div class="defun">
— Function File: <b>tand</b> (<var>x</var>)<var><a name="index-tand-1827"></a></var><br>
<blockquote><p>Compute the tangent for each element of <var>x</var> in degrees. Returns zero
for elements where <var>x</var><code>/180</code> is an integer and <code>Inf</code> for
elements where <code>(</code><var>x</var><code>-90)/180</code> is an integer.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002datand.html#doc_002datand">atand</a>, <a href="doc_002dtan.html#doc_002dtan">tan</a>.
</p></blockquote></div>
<!-- secd scripts/elfun/secd.m -->
<p><a name="doc_002dsecd"></a>
<div class="defun">
— Function File: <b>secd</b> (<var>x</var>)<var><a name="index-secd-1828"></a></var><br>
<blockquote><p>Compute the secant for each element of <var>x</var> in degrees.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dasecd.html#doc_002dasecd">asecd</a>, <a href="doc_002dsec.html#doc_002dsec">sec</a>.
</p></blockquote></div>
<!-- cscd scripts/elfun/cscd.m -->
<p><a name="doc_002dcscd"></a>
<div class="defun">
— Function File: <b>cscd</b> (<var>x</var>)<var><a name="index-cscd-1829"></a></var><br>
<blockquote><p>Compute the cosecant for each element of <var>x</var> in degrees.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dacscd.html#doc_002dacscd">acscd</a>, <a href="doc_002dcsc.html#doc_002dcsc">csc</a>.
</p></blockquote></div>
<!-- cotd scripts/elfun/cotd.m -->
<p><a name="doc_002dcotd"></a>
<div class="defun">
— Function File: <b>cotd</b> (<var>x</var>)<var><a name="index-cotd-1830"></a></var><br>
<blockquote><p>Compute the cotangent for each element of <var>x</var> in degrees.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dacotd.html#doc_002dacotd">acotd</a>, <a href="doc_002dcot.html#doc_002dcot">cot</a>.
</p></blockquote></div>
<!-- asind scripts/elfun/asind.m -->
<p><a name="doc_002dasind"></a>
<div class="defun">
— Function File: <b>asind</b> (<var>x</var>)<var><a name="index-asind-1831"></a></var><br>
<blockquote><p>Compute the inverse sine in degrees for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
<!-- A simple blank line produces the correct behavior. -->
<!-- @sp 1 -->
<p class="noindent"><strong>See also:</strong> <a href="doc_002dsind.html#doc_002dsind">sind</a>, <a href="doc_002dasin.html#doc_002dasin">asin</a>.
</p></blockquote></div>
<!-- acosd scripts/elfun/acosd.m -->
<p><a name="doc_002dacosd"></a>
<div class="defun">
— Function File: <b>acosd</b> (<var>x</var>)<var><a name="index-acosd-1832"></a></var><br>
<blockquote><p>Compute the inverse cosine in degrees for each element of <var>x</var>.
<!-- Texinfo @sp should work but in practice produces ugly results for HTML. -->
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dcosd.html#doc_002dcosd">cosd</a>, <a href="doc_002dacos.html#doc_002dacos">acos</a>.
</p></blockquote></div>
<!-- atand scripts/elfun/atand.m -->
<p><a name="doc_002datand"></a>
<div class="defun">
— Function File: <b>atand</b> (<var>x</var>)<var><a name="index-atand-1833"></a></var><br>
<blockquote><p>Compute the inverse tangent in degrees for each element of <var>x</var>.
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dtand.html#doc_002dtand">tand</a>, <a href="doc_002datan.html#doc_002datan">atan</a>.
</p></blockquote></div>
<!-- asecd scripts/elfun/asecd.m -->
<p><a name="doc_002dasecd"></a>
<div class="defun">
— Function File: <b>asecd</b> (<var>x</var>)<var><a name="index-asecd-1834"></a></var><br>
<blockquote><p>Compute the inverse secant in degrees for each element of <var>x</var>.
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dsecd.html#doc_002dsecd">secd</a>, <a href="doc_002dasec.html#doc_002dasec">asec</a>.
</p></blockquote></div>
<!-- acscd scripts/elfun/acscd.m -->
<p><a name="doc_002dacscd"></a>
<div class="defun">
— Function File: <b>acscd</b> (<var>x</var>)<var><a name="index-acscd-1835"></a></var><br>
<blockquote><p>Compute the inverse cosecant in degrees for each element of <var>x</var>.
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dcscd.html#doc_002dcscd">cscd</a>, <a href="doc_002dacsc.html#doc_002dacsc">acsc</a>.
</p></blockquote></div>
<!-- acotd scripts/elfun/acotd.m -->
<p><a name="doc_002dacotd"></a>
<div class="defun">
— Function File: <b>acotd</b> (<var>x</var>)<var><a name="index-acotd-1836"></a></var><br>
<blockquote><p>Compute the inverse cotangent in degrees for each element of <var>x</var>.
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dcotd.html#doc_002dcotd">cotd</a>, <a href="doc_002dacot.html#doc_002dacot">acot</a>.
</p></blockquote></div>
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