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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) ????-2008 - INRIA
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function sol=chsolve(spcho,rhs)
// Cholesky solver for A*sol=rhs (A is symmetric >0)
// 1rst step: spcho=chfact(A)
// 2nd step: sol=chsolve(spcho,rhs)
// Example: N=20; A=sprand(N,N,0.1);
// A=A*A'+speye(A);
// sol=(1:N)'; rhs=A*sol;
// spcho=chfact(A); sol=chsolve(spcho,rhs)
perm=spcho("perm");
sol=blkslv(spcho,rhs(perm));
sol(perm)=sol
endfunction
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