1DLASCL(1)           LAPACK auxiliary routine (version 3.1)           DLASCL(1)
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NAME

6       DLASCL - the M by N real matrix A by the real scalar CTO/CFROM
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SYNOPSIS

9       SUBROUTINE DLASCL( TYPE, KL, KU, CFROM, CTO, M, N, A, LDA, INFO )
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11           CHARACTER      TYPE
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13           INTEGER        INFO, KL, KU, LDA, M, N
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15           DOUBLE         PRECISION CFROM, CTO
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17           DOUBLE         PRECISION A( LDA, * )
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PURPOSE

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

28       TYPE    (input) CHARACTER*1
29               TYPE  indices  the storage type of the input matrix.  = 'G':  A
30               is a full matrix.
31               = 'L':  A is a lower triangular matrix.
32               = 'U':  A is an upper triangular matrix.
33               = 'H':  A is an upper Hessenberg matrix.
34               = 'B':  A is a symmetric band matrix with  lower  bandwidth  KL
35               and upper bandwidth KU and with the only the lower half stored.
36               = 'Q':  A is a symmetric band matrix with  lower  bandwidth  KL
37               and upper bandwidth KU and with the only the upper half stored.
38               = 'Z':  A is a band matrix with lower bandwidth  KL  and  upper
39               bandwidth KU.
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41       KL      (input) INTEGER
42               The  lower  bandwidth of A.  Referenced only if TYPE = 'B', 'Q'
43               or 'Z'.
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45       KU      (input) INTEGER
46               The upper bandwidth of A.  Referenced only if TYPE =  'B',  'Q'
47               or 'Z'.
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49       CFROM   (input) DOUBLE PRECISION
50               CTO      (input) DOUBLE PRECISION The matrix A is multiplied by
51               CTO/CFROM. A(I,J) is computed  without  over/underflow  if  the
52               final   result  CTO*A(I,J)/CFROM  can  be  represented  without
53               over/underflow.  CFROM must be nonzero.
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55       M       (input) INTEGER
56               The number of rows of the matrix A.  M >= 0.
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58       N       (input) INTEGER
59               The number of columns of the matrix A.  N >= 0.
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61       A       (input/output) DOUBLE PRECISION array, dimension (LDA,N)
62               The matrix to be multiplied by CTO/CFROM.   See  TYPE  for  the
63               storage type.
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65       LDA     (input) INTEGER
66               The leading dimension of the array A.  LDA >= max(1,M).
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68       INFO    (output) INTEGER
69               0   -  successful exit <0 - if INFO = -i, the i-th argument had
70               an illegal value.
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74 LAPACK auxiliary routine (versionNo3v.e1m)ber 2006                       DLASCL(1)
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