LAPACK
3.6.1
LAPACK: Linear Algebra PACKage
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subroutine dlag2s | ( | integer | M, |
integer | N, | ||
double precision, dimension( lda, * ) | A, | ||
integer | LDA, | ||
real, dimension( ldsa, * ) | SA, | ||
integer | LDSA, | ||
integer | INFO | ||
) |
DLAG2S converts a double precision matrix to a single precision matrix.
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DLAG2S converts a DOUBLE PRECISION matrix, SA, to a SINGLE PRECISION matrix, A. RMAX is the overflow for the SINGLE PRECISION arithmetic DLAG2S checks that all the entries of A are between -RMAX and RMAX. If not the convertion is aborted and a flag is raised. This is an auxiliary routine so there is no argument checking.
[in] | M | M is INTEGER The number of lines of the matrix A. M >= 0. |
[in] | N | N is INTEGER The number of columns of the matrix A. N >= 0. |
[in] | A | A is DOUBLE PRECISION array, dimension (LDA,N) On entry, the M-by-N coefficient matrix A. |
[in] | LDA | LDA is INTEGER The leading dimension of the array A. LDA >= max(1,M). |
[out] | SA | SA is REAL array, dimension (LDSA,N) On exit, if INFO=0, the M-by-N coefficient matrix SA; if INFO>0, the content of SA is unspecified. |
[in] | LDSA | LDSA is INTEGER The leading dimension of the array SA. LDSA >= max(1,M). |
[out] | INFO | INFO is INTEGER = 0: successful exit. = 1: an entry of the matrix A is greater than the SINGLE PRECISION overflow threshold, in this case, the content of SA in exit is unspecified. |
Definition at line 110 of file dlag2s.f.