int PLASMA_cgecon	(	PLASMA_enum	norm,
		int	N,
		PLASMA_Complex32_t *	A,
		int	LDA,
		float	Anorm,
		float *	rcond
	)

PLASMA_cgecon - estimates the reciprocal of the condition number of a general complex matrix A, in either the 1-norm or the infinity-norm, using the LU factorization computed by PLASMA_cgetrf().

An estimate is obtained for norm(inv(A)), and the reciprocal of the condition number is computed as

\[ rcond = \frac{1}{\|\|A\-\| \times \-\|A^{-1}\|\|} \]

Parameters

[in]	norm	Specifies whether the 1-norm condition number or the infinity-norm condition number is required: = PlasmaOneNorm: One norm = PlasmaInfNorm: Infinity norm
[in]	N	The order of the matrix A. N >= 0.
[in]	A	The N-by-N matrix A.
[in]	LDA	The leading dimension of the array A. LDA >= max(1,N).
[in]	Anorm	If norm = PlasmaOneNorm, the 1-norm of the original matrix A. If norm = PlasmaInfNorm, the infinity-norm of the original matrix A.
[out]	rcond	The reciprocal of the condition number of the matrix A, computed as stated above.

Returns

Return values

PLASMA_SUCCESS	successful exit
<0	if -i, the i-th argument had an illegal value

See also

PLASMA_cgecon_Tile

PLASMA_cgecon_Tile_Async

PLASMA_cgecon

PLASMA_dgecon

PLASMA_sgecon