f07fdf

f07fdf © Numerical Algorithms Group, 2002.

Purpose

F07FDF Cholesky factorization of real symmetric positive-definite matrix (SPOTRF/DPOTRF) F07FDF (SPOTRS/DPOTRS)

Synopsis

[a,info] = f07fdf(a<,uplo>)

Description

 
 This routine forms the Cholesky factorization of a real symmetric
                                         T                       T
 positive-definite matrix A either as A=U U if UPLO = 'U' or A=LL 
 if UPLO = 'L', where U is an upper triangular matrix and L is 
 lower triangular.

Parameters

f07fdf

Required Input Arguments:

a (:,:)                               real

Optional Input Arguments:                       <Default>

uplo (1)                              string   'l'

Output Arguments:

a (:,:)                               real
info                                  integer