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Diffstat (limited to 'help/en_US/cheb.xml')
-rw-r--r-- | help/en_US/cheb.xml | 44 |
1 files changed, 1 insertions, 43 deletions
diff --git a/help/en_US/cheb.xml b/help/en_US/cheb.xml index 7e39e30..31a71b7 100644 --- a/help/en_US/cheb.xml +++ b/help/en_US/cheb.xml @@ -17,49 +17,7 @@ <refnamediv> <refname>cheb</refname> - <refpurpose>Calculates the nth-order Chebyshev polynomial at the point x.</refpurpose> + <refpurpose></refpurpose> </refnamediv> - -<refsynopsisdiv> - <title>Calling Sequence</title> - <synopsis> - cheb(n, x) - </synopsis> -</refsynopsisdiv> - -<refsection> - <title>Parameters</title> - <variablelist> - <varlistentry><term>n:</term> - <listitem><para> Filter order</para></listitem></varlistentry> - <varlistentry><term>x:</term> - <listitem><para> Point at which the Chebyshev polynomial is calculater.</para></listitem></varlistentry> - </variablelist> -</refsection> - -<refsection> - <title>Description</title> - <para> -This is an Octave function. -Equation for Chebyshev polynomial is -/ cos(n acos(x), |x| <= 1 -Tn(x) = | -\ cosh(n acosh(x), |x| > 1 - </para> - <para> -x can also be a vector. In that case the output will also be a vector of same size as x. -</para> -</refsection> - -<refsection> - <title>Examples</title> - <programlisting role="example"><![CDATA[ -x = [1 2 3 4] -cheb(10, x) -ans = - -1.0000e+00 2.6209e+05 2.2620e+07 4.5747e+08 - ]]></programlisting> -</refsection> </refentry> |