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dlag2s.f(3) | LAPACK | dlag2s.f(3) |
NAME¶
dlag2s.f -SYNOPSIS¶
Functions/Subroutines¶
subroutine dlag2s (M, N, A, LDA, SA, LDSA, INFO)
Function/Subroutine Documentation¶
subroutine dlag2s (integerM, integerN, double precision, dimension( lda, * )A, integerLDA, real, dimension( ldsa, * )SA, integerLDSA, integerINFO)¶
DLAG2S Purpose: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.
M
N
A
LDA
SA
LDSA
INFO
Author:
M is INTEGER The number of lines of the matrix A. M >= 0.
N is INTEGER The number of columns of the matrix A. N >= 0.
A is DOUBLE PRECISION array, dimension (LDA,N) On entry, the M-by-N coefficient matrix A.
LDA is INTEGER The leading dimension of the array A. LDA >= max(1,M).
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.
LDSA is INTEGER The leading dimension of the array SA. LDSA >= max(1,M).
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.
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Author¶
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