clascl man page on Scientific

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CLASCL(1)	    LAPACK auxiliary routine (version 3.2)	     CLASCL(1)

NAME
       CLASCL  -  multiplies  the  M  by N complex matrix A by the real scalar
       CTO/CFROM

SYNOPSIS
       SUBROUTINE CLASCL( TYPE, KL, KU, CFROM, CTO, M, N, A, LDA, INFO )

	   CHARACTER	  TYPE

	   INTEGER	  INFO, KL, KU, LDA, M, N

	   REAL		  CFROM, CTO

	   COMPLEX	  A( LDA, * )

PURPOSE
       CLASCL multiplies the M by N  complex  matrix  A	 by  the  real	scalar
       CTO/CFROM.   This  is  done without over/underflow as long as the final
       result CTO*A(I,J)/CFROM does not over/underflow. TYPE specifies that  A
       may  be	full, upper triangular, lower triangular, upper Hessenberg, or
       banded.

ARGUMENTS
       TYPE    (input) CHARACTER*1
	       TYPE indices the storage type of the input matrix.  =  'G':   A
	       is a full matrix.
	       = 'L':  A is a lower triangular matrix.
	       = 'U':  A is an upper triangular matrix.
	       = 'H':  A is an upper Hessenberg matrix.
	       =  'B':	 A  is a symmetric band matrix with lower bandwidth KL
	       and upper bandwidth KU and with the only the lower half stored.
	       =  'Q':	 A  is a symmetric band matrix with lower bandwidth KL
	       and upper bandwidth KU and with the only the upper half stored.
	       =  'Z':	 A  is a band matrix with lower bandwidth KL and upper
	       bandwidth KU.

       KL      (input) INTEGER
	       The lower bandwidth of A.  Referenced only if TYPE =  'B',  'Q'
	       or 'Z'.

       KU      (input) INTEGER
	       The  upper  bandwidth of A.  Referenced only if TYPE = 'B', 'Q'
	       or 'Z'.

       CFROM   (input) REAL
	       CTO     (input) REAL The matrix A is multiplied	by  CTO/CFROM.
	       A(I,J)  is  computed without over/underflow if the final result
	       CTO*A(I,J)/CFROM can  be	 represented  without  over/underflow.
	       CFROM must be nonzero.

       M       (input) INTEGER
	       The number of rows of the matrix A.  M >= 0.

       N       (input) INTEGER
	       The number of columns of the matrix A.  N >= 0.

       A       (input/output) COMPLEX array, dimension (LDA,N)
	       The  matrix  to	be  multiplied by CTO/CFROM.  See TYPE for the
	       storage type.

       LDA     (input) INTEGER
	       The leading dimension of the array A.  LDA >= max(1,M).

       INFO    (output) INTEGER
	       0  - successful exit <0 - if INFO = -i, the i-th	 argument  had
	       an illegal value.

 LAPACK auxiliary routine (versioNovember 2008			     CLASCL(1)
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