csyr man page on Scientific

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```CSYR(1)		    LAPACK auxiliary routine (version 3.2)	       CSYR(1)

NAME
CSYR  - performs the symmetric rank 1 operation	 A := alpha*x*( x' ) +
A,

SYNOPSIS
SUBROUTINE CSYR( UPLO, N, ALPHA, X, INCX, A, LDA )

CHARACTER	UPLO

INTEGER	INCX, LDA, N

COMPLEX	ALPHA

COMPLEX	A( LDA, * ), X( * )

PURPOSE
CSYR   performs the symmetric rank 1 operation where alpha is a complex
scalar, x is an n element vector and A is an n by n symmetric matrix.

ARGUMENTS
UPLO	(input) CHARACTER*1
On entry, UPLO specifies whether the upper or lower triangular
part of the array A is to be referenced as follows: UPLO = 'U'
or  'u'	   Only the upper triangular part of A is to be refer‐
enced.	UPLO = 'L' or 'l'   Only the lower triangular part  of
A is to be referenced.	Unchanged on exit.

N	(input) INTEGER
On entry, N specifies the order of the matrix A.  N must be at
least zero.  Unchanged on exit.

ALPHA	(input) COMPLEX
On entry, ALPHA specifies  the	scalar	alpha.	 Unchanged  on
exit.

X	(input) COMPLEX array, dimension at least
(  1 + ( N - 1 )*abs( INCX ) ).	 Before entry, the incremented
array X must contain the N- element vector  x.	 Unchanged  on
exit.

INCX	(input) INTEGER
On  entry, INCX specifies the increment for the elements of X.
INCX must not be zero.	Unchanged on exit.

A	(input/output) COMPLEX array, dimension ( LDA, N )
Before entry, with  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. On exit, the upper
triangular part of the array A is  overwritten	by  the	 upper
triangular  part  of  the  updated matrix.  Before entry, with
UPLO = 'L' or 'l', the leading n by n lower triangular part of
the array A must contain the lower triangular part of the sym‐
metric matrix and the strictly upper triangular part of	 A  is
not  referenced.  On  exit,  the  lower triangular part of the
array A is overwritten by the lower  triangular	 part  of  the
updated matrix.

LDA	(input) INTEGER
On  entry,  LDA specifies the first dimension of A as declared
in the calling (sub) program. LDA must be at least max(	 1,  N
).  Unchanged on exit.

LAPACK auxiliary routine (versioNovember 2008			       CSYR(1)
```
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