.TH "BLAS/SRC/ssymm.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
BLAS/SRC/ssymm.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBssymm\fP (side, uplo, m, n, alpha, a, lda, b, ldb, beta, c, ldc)"
.br
.RI "\fBSSYMM\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine ssymm (character side, character uplo, integer m, integer n, real alpha, real, dimension(lda,*) a, integer lda, real, dimension(ldb,*) b, integer ldb, real beta, real, dimension(ldc,*) c, integer ldc)"

.PP
\fBSSYMM\fP 
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
!>
!> SSYMM  performs one of the matrix-matrix operations
!>
!>    C := alpha*A*B + beta*C,
!>
!> or
!>
!>    C := alpha*B*A + beta*C,
!>
!> where alpha and beta are scalars,  A is a symmetric matrix and  B and
!> C are  m by n matrices\&.
!> 
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fISIDE\fP 
.PP
.nf
!>          SIDE is CHARACTER*1
!>           On entry,  SIDE  specifies whether  the  symmetric matrix  A
!>           appears on the  left or right  in the  operation as follows:
!>
!>              SIDE = 'L' or 'l'   C := alpha*A*B + beta*C,
!>
!>              SIDE = 'R' or 'r'   C := alpha*B*A + beta*C,
!> 
.fi
.PP
.br
\fIUPLO\fP 
.PP
.nf
!>          UPLO is CHARACTER*1
!>           On  entry,   UPLO  specifies  whether  the  upper  or  lower
!>           triangular  part  of  the  symmetric  matrix   A  is  to  be
!>           referenced as follows:
!>
!>              UPLO = 'U' or 'u'   Only the upper triangular part of the
!>                                  symmetric matrix is to be referenced\&.
!>
!>              UPLO = 'L' or 'l'   Only the lower triangular part of the
!>                                  symmetric matrix is to be referenced\&.
!> 
.fi
.PP
.br
\fIM\fP 
.PP
.nf
!>          M is INTEGER
!>           On entry,  M  specifies the number of rows of the matrix  C\&.
!>           M  must be at least zero\&.
!> 
.fi
.PP
.br
\fIN\fP 
.PP
.nf
!>          N is INTEGER
!>           On entry, N specifies the number of columns of the matrix C\&.
!>           N  must be at least zero\&.
!> 
.fi
.PP
.br
\fIALPHA\fP 
.PP
.nf
!>          ALPHA is REAL
!>           On entry, ALPHA specifies the scalar alpha\&.
!> 
.fi
.PP
.br
\fIA\fP 
.PP
.nf
!>          A is REAL array, dimension ( LDA, ka ), where ka is
!>           m  when  SIDE = 'L' or 'l'  and is  n otherwise\&.
!>           Before entry  with  SIDE = 'L' or 'l',  the  m by m  part of
!>           the array  A  must contain the  symmetric matrix,  such that
!>           when  UPLO = 'U' or 'u', the leading m by m upper triangular
!>           part of the array  A  must contain the upper triangular part
!>           of the  symmetric matrix and the  strictly  lower triangular
!>           part of  A  is not referenced,  and when  UPLO = 'L' or 'l',
!>           the leading  m by m  lower triangular part  of the  array  A
!>           must  contain  the  lower triangular part  of the  symmetric
!>           matrix and the  strictly upper triangular part of  A  is not
!>           referenced\&.
!>           Before entry  with  SIDE = 'R' or 'r',  the  n by n  part of
!>           the array  A  must contain the  symmetric matrix,  such that
!>           when  UPLO = 'U' or 'u', the leading n by n upper triangular
!>           part of the array  A  must contain the upper triangular part
!>           of the  symmetric matrix and the  strictly  lower triangular
!>           part of  A  is not referenced,  and when  UPLO = 'L' or 'l',
!>           the leading  n by n  lower triangular part  of the  array  A
!>           must  contain  the  lower triangular part  of the  symmetric
!>           matrix and the  strictly upper triangular part of  A  is not
!>           referenced\&.
!> 
.fi
.PP
.br
\fILDA\fP 
.PP
.nf
!>          LDA is INTEGER
!>           On entry, LDA specifies the first dimension of A as declared
!>           in the calling (sub) program\&.  When  SIDE = 'L' or 'l'  then
!>           LDA must be at least  max( 1, m ), otherwise  LDA must be at
!>           least  max( 1, n )\&.
!> 
.fi
.PP
.br
\fIB\fP 
.PP
.nf
!>          B is REAL array, dimension ( LDB, N )
!>           Before entry, the leading  m by n part of the array  B  must
!>           contain the matrix B\&.
!> 
.fi
.PP
.br
\fILDB\fP 
.PP
.nf
!>          LDB is INTEGER
!>           On entry, LDB specifies the first dimension of B as declared
!>           in  the  calling  (sub)  program\&.   LDB  must  be  at  least
!>           max( 1, m )\&.
!> 
.fi
.PP
.br
\fIBETA\fP 
.PP
.nf
!>          BETA is REAL
!>           On entry,  BETA  specifies the scalar  beta\&.  When  BETA  is
!>           supplied as zero then C need not be set on input\&.
!> 
.fi
.PP
.br
\fIC\fP 
.PP
.nf
!>          C is REAL array, dimension ( LDC, N )
!>           Before entry, the leading  m by n  part of the array  C must
!>           contain the matrix  C,  except when  beta  is zero, in which
!>           case C need not be set on entry\&.
!>           On exit, the array  C  is overwritten by the  m by n updated
!>           matrix\&.
!> 
.fi
.PP
.br
\fILDC\fP 
.PP
.nf
!>          LDC is INTEGER
!>           On entry, LDC specifies the first dimension of C as declared
!>           in  the  calling  (sub)  program\&.   LDC  must  be  at  least
!>           max( 1, m )\&.
!> 
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 

.PP
Univ\&. of California Berkeley 

.PP
Univ\&. of Colorado Denver 

.PP
NAG Ltd\&. 
.RE
.PP
\fBFurther Details:\fP
.RS 4

.PP
.nf
!>
!>  Level 3 Blas routine\&.
!>
!>  -- Written on 8-February-1989\&.
!>     Jack Dongarra, Argonne National Laboratory\&.
!>     Iain Duff, AERE Harwell\&.
!>     Jeremy Du Croz, Numerical Algorithms Group Ltd\&.
!>     Sven Hammarling, Numerical Algorithms Group Ltd\&.
!> 
.fi
.PP
 
.RE
.PP

.PP
Definition at line \fB188\fP of file \fBssymm\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.