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SUBROUTINE MA02AD( JOB, M, N, A, LDA, B, LDB )
C
C RELEASE 4.0, WGS COPYRIGHT 1999.
C
C PURPOSE
C
C To transpose all or part of a two-dimensional matrix A into
C another matrix B.
C
C ARGUMENTS
C
C Mode Parameters
C
C JOB CHARACTER*1
C Specifies the part of the matrix A to be transposed into B
C as follows:
C = 'U': Upper triangular part;
C = 'L': Lower triangular part;
C Otherwise: All of the matrix A.
C
C Input/Output Parameters
C
C M (input) INTEGER
C The number of rows of the matrix A. M >= 0.
C
C N (input) INTEGER
C The number of columns of the matrix A. N >= 0.
C
C A (input) DOUBLE PRECISION array, dimension (LDA,N)
C The m-by-n matrix A. If JOB = 'U', only the upper
C triangle or trapezoid is accessed; if JOB = 'L', only the
C lower triangle or trapezoid is accessed.
C
C LDA INTEGER
C The leading dimension of the array A. LDA >= max(1,M).
C
C B (output) DOUBLE PRECISION array, dimension (LDB,M)
C B = A' in the locations specified by JOB.
C
C LDB INTEGER
C The leading dimension of the array B. LDB >= max(1,N).
C
C CONTRIBUTOR
C
C A. Varga, German Aerospace Center,
C DLR Oberpfaffenhofen, March 1998.
C Based on the RASP routine DMTRA.
C
C REVISIONS
C
C -
C
C ******************************************************************
C
C .. Scalar Arguments ..
CHARACTER JOB
INTEGER LDA, LDB, M, N
C .. Array Arguments ..
DOUBLE PRECISION A(LDA,*), B(LDB,*)
C .. Local Scalars ..
INTEGER I, J
C .. External Functions ..
LOGICAL LSAME
EXTERNAL LSAME
C .. Intrinsic Functions ..
INTRINSIC MIN
C
C .. Executable Statements ..
C
IF( LSAME( JOB, 'U' ) ) THEN
DO 20 J = 1, N
DO 10 I = 1, MIN( J, M )
B(J,I) = A(I,J)
10 CONTINUE
20 CONTINUE
ELSE IF( LSAME( JOB, 'L' ) ) THEN
DO 40 J = 1, N
DO 30 I = J, M
B(J,I) = A(I,J)
30 CONTINUE
40 CONTINUE
ELSE
DO 60 J = 1, N
DO 50 I = 1, M
B(J,I) = A(I,J)
50 CONTINUE
60 CONTINUE
END IF
C
RETURN
C *** Last line of MA02AD ***
END
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