tri_sle.F90 File Reference

Solution of a system of linear equations Ax=b with tridiagonal matrix A. More...

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Functions/Subroutines
subroutine	tri_sle (a0, a1, a2, x, b, nzeilen)
	Solution of a system of linear equations Ax=b with tridiagonal matrix A.

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Detailed Description

Solution of a system of linear equations Ax=b with tridiagonal matrix A.

Copyright

Copyright 2009-2013 Ralf Greve

License

This file is part of SICOPOLIS.

SICOPOLIS is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

SICOPOLIS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with SICOPOLIS. If not, see http://www.gnu.org/licenses/.

Definition in file tri_sle.F90.

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Function/Subroutine Documentation

subroutine tri_sle	(	real(dp), dimension(0:*)	a0,
		real(dp), dimension(0:*)	a1,
		real(dp), dimension(0:*)	a2,
		real(dp), dimension(0:*)	x,
		real(dp), dimension(0:*)	b,
		integer(i4b)	nzeilen
	)

Solution of a system of linear equations Ax=b with tridiagonal matrix A.

Parameters:

[in]	a0	a0(j) is element A_(j,j-1) of Matrix A
[in]	a1	a1(j) is element A_(j,j) of Matrix A
[in]	a2	a2(j) is element A_(j,j+1) of Matrix A
[in]	b	inhomogeneity vector
[in]	nzeilen	size of matrix A (indices run from 0 (!!!) to nzeilen)
[out]	x	Solution vector.

Definition at line 41 of file tri_sle.F90.