trtri: Triangular inverse; used in getri, potri

\( A = A^{-1} \) where \( A \) is triangular More...

Functions
	__attribute__ ((weak))

Detailed Description

\( A = A^{-1} \) where \( A \) is triangular

Function Documentation

__attribute__

(

(weak)

)

Computes the inverse of an upper or lower triangular matrix A.

Parameters

[in]	uplo	= PlasmaUpper: Upper triangle of A is stored; = PlasmaLower: Lower triangle of A is stored.
[in]	diag	= PlasmaNonUnit: A is non-unit triangular; = PlasmaUnit: A is unit triangular.
[in]	n	The order of the matrix A. n >= 0.
[in,out]	A	On entry, the triangular matrix A. If uplo = 'U', the leading n-by-n upper triangular part of the array A contains the upper triangular matrix, and the strictly lower triangular part of A is not referenced. If uplo = 'L', the leading n-by-n lower triangular part of the array A contains the lower triangular matrix, and the strictly upper triangular part of A is not referenced. If diag = 'U', the diagonal elements of A are also not referenced and are assumed to be 1. On exit, the (triangular) inverse of the original matrix.
[in]	lda	The leading dimension of the array A. lda >= max(1,n).

Return values

PlasmaSuccess	on successful exit
<	0 if -i, the i-th argument had an illegal value
>	0 if i, A(i,i) is exactly zero. The triangular matrix is singular and its inverse can not be computed.