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RedHat 9 (Linux i386) - man page for slauu2 (redhat section l)

SLAUU2(l)					)					SLAUU2(l)

NAME
       SLAUU2  -  compute  the	product  U  * U' or L' * L, where the triangular factor U or L is
       stored in the upper or lower triangular part of the array A

SYNOPSIS
       SUBROUTINE SLAUU2( UPLO, N, A, LDA, INFO )

	   CHARACTER	  UPLO

	   INTEGER	  INFO, LDA, N

	   REAL 	  A( LDA, * )

PURPOSE
       SLAUU2 computes the product U * U' or L' * L, where the triangular factor U or L is stored
       in the upper or lower triangular part of the array A.  If UPLO = 'U' or 'u' then the upper
       triangle of the result is stored, overwriting the factor U in A.
       If UPLO = 'L' or 'l' then the lower triangle of the result is stored, overwriting the fac-
       tor L in A.

       This is the unblocked form of the algorithm, calling Level 2 BLAS.

ARGUMENTS
       UPLO    (input) CHARACTER*1
	       Specifies  whether  the	triangular factor stored in the array A is upper or lower
	       triangular:
	       = 'U':  Upper triangular
	       = 'L':  Lower triangular

       N       (input) INTEGER
	       The order of the triangular factor U or L.  N >= 0.

       A       (input/output) REAL array, dimension (LDA,N)
	       On entry, the triangular factor U or L.	On exit, if UPLO = 'U', the upper  trian-
	       gle  of	A is overwritten with the upper triangle of the product U * U'; if UPLO =
	       'L', the lower triangle of A is overwritten with the lower triangle of the product
	       L' * L.

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

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

LAPACK version 3.0			   15 June 2000 				SLAUU2(l)


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