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<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:ns5="http://www.w3.org/1999/xhtml" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" version="5.0-subset Scilab" xml:id="trisolve" xml:lang="en">
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<refname>trisolve</refname>
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<refpurpose>symbolic linear system solver</refpurpose>
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<title>Calling Sequence</title>
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<synopsis>[x [,sexp]] = trisolve(A,b [,sexp])</synopsis>
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<title>Arguments</title>
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<para>matrices of strings</para>
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<title>Description</title>
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symbolically solves <literal>A*x =b</literal> , <literal>A</literal>
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being assumed to be upper triangular.
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<literal>sexp</literal> is a vector of common subexpressions in
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<literal>A, b, x</literal>.
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<title>Examples</title>
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<programlisting role="example"><![CDATA[
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<refname>trisolve</refname>
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<refpurpose>symbolic linear system solver</refpurpose>
20
<title>Calling Sequence</title>
21
<synopsis>[x [,sexp]] = trisolve(A,b [,sexp])</synopsis>
24
<title>Arguments</title>
29
<para>matrices of strings</para>
35
<title>Description</title>
37
symbolically solves <literal>A*x =b</literal> , <literal>A</literal>
38
being assumed to be upper triangular.
41
<literal>sexp</literal> is a vector of common subexpressions in
42
<literal>A, b, x</literal>.
46
<title>Examples</title>
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<programlisting role="example"><![CDATA[
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A=['x','y';'0','z'];b=['0';'1'];
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inv(evstr(A))*evstr(b)
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]]></programlisting>
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<refsection role="see also">
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<title>See Also</title>
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<simplelist type="inline">
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<link linkend="trianfml">trianfml</link>
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<link linkend="solve">solve</link>
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<refsection role="see also">
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<title>See Also</title>
57
<simplelist type="inline">
59
<link linkend="trianfml">trianfml</link>
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<link linkend="solve">solve</link>