lapack_oct_m::lapack_potrf Interface Reference

computes the Cholesky factorization of a real symmetric positive definite matrix A. More...

Detailed Description

computes the Cholesky factorization of a real symmetric positive definite matrix A.

The factorization has the form

\[ A = U^T U, \mbox{ if UPLO} = 'U', \]

or

\[ A = L L^T, \mbox{ if UPLO} = 'L', \]

where U is an upper triangular matrix and L is lower triangular.

This is the block version of the algorithm, calling Level 3 BLAS.

Definition at line 137 of file lapack.F90.

Public Member Functions
subroutine	dpotrf (uplo, n, a, lda, info)
subroutine	zpotrf (uplo, n, a, lda, info)

Member Function/Subroutine Documentation

dpotrf()

subroutine lapack_oct_m::lapack_potrf::dpotrf	(	character(1), intent(in)	uplo,
		integer, intent(in)	n,
		real(real64), intent(inout)	a,
		integer, intent(in)	lda,
		integer, intent(out)	info
	)

Definition at line 138 of file lapack.F90.

zpotrf()

subroutine lapack_oct_m::lapack_potrf::zpotrf	(	character(1), intent(in)	uplo,
		integer, intent(in)	n,
		complex(real64), intent(inout)	a,
		integer, intent(in)	lda,
		integer, intent(out)	info
	)

Definition at line 148 of file lapack.F90.

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The documentation for this interface was generated from the following file:

• math/lapack.F90