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<TITLE> Givens matrix operations routines.</TITLE>
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<H2> <A HREF="#DOC.DOCU"> Givens matrix operations routines.</A></H2></H2>
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void <B><A HREF="mx_givens.html">mx_givens</A></B>(real x, real <!1><A HREF="QCMachine.html#DOC.40.7">y</A>, real* c, real* s)
<DD><I>Returns <TT>c</TT>, <TT>s</TT> parameters for Givens rotation to eliminate <TT>y</TT> in the vector <TT>[ x y ]'</TT></I>
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void <B><A HREF="mx_rot_vec.html">mx_rot_vec</A></B>(<!1><A HREF="Vec.html">Vec</A>* x, int i, int k, real c, real s, <!1><A HREF="Vec.html">Vec</A>* out)
<DD><I>Apply Givens rotation to <TT>x</TT>'s <TT>i</TT> and <TT>k</TT> components</I>
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void <B><A HREF="mx_rot_rows.html">mx_rot_rows</A></B>(<!1><A HREF="Mat.html">Mat</A>* mat, int i, int k, real c, real s, <!1><A HREF="Mat.html">Mat</A>* out)
<DD><I>Premultiply <TT>mat</TT> by givens rotation described by <TT>c</TT>,<TT>s</TT></I>
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void <B><A HREF="mx_rot_cols.html">mx_rot_cols</A></B>(<!1><A HREF="Mat.html">Mat</A>* mat, int i, int k, real c, real s, <!1><A HREF="Mat.html">Mat</A>* out)
<DD><I>Postmultiply <TT>mat</TT> by givens rotation described by <TT>c</TT>,<TT>s</TT></I>
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<H2>Documentation</H2>
<BLOCKQUOTE>
Givens matrix operations routines.
Routines for calculating and applying Givens rotations for/to
vectors and also to matrices by row and by column.
<P>Based on the "Meschach Library", available at the
anonymous ftp site thrain.anu.edu.au in the directory
pub/meschach.
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<DL><DT><DT><B>Author:</B><DD>David E. Stewart (david.stewart@anu.edu.au)
Zbigniew Leyk (zbigniew.leyk@anu.edu.au)
Ronan Collobert (collober@iro.umontreal.ca)
<DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I> <I><A HREF="HIER.html">HTML hierarchy of classes</A> or <A HREF="HIERjava.html">Java</A></I></P><HR>
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