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<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
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<!DOCTYPE MAN SYSTEM "../../manrev.dtd">
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<LANGUAGE>eng</LANGUAGE>
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<TYPE>Scilab Function</TYPE>
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<DATE>April 1993</DATE>
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<SHORT_DESCRIPTION name="acosm"> matrix wise cosine inverse</SHORT_DESCRIPTION>
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<CALLING_SEQUENCE_ITEM>t=acosm(x) </CALLING_SEQUENCE_ITEM>
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<PARAM_NAME>x</PARAM_NAME>
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<SP>: real or complex square matrix</SP>
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<PARAM_NAME>t</PARAM_NAME>
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<SP>: real or complex square matrix</SP>
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<P><VERB>t</VERB> are cosine inverse of the <VERB>x</VERB> matrix. Diagonalization
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method is used. For nonsymmetric matrices result may
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be inaccurate.One has <VERB>t=-%i*logm(x+%i*sqrtm(eye()-x*x))</VERB></P>