{he,sy}r2: Hermitian/symmetric rank-2 update

Functions
subroutine	cher2 (uplo, n, alpha, x, incx, y, incy, a, lda)
	CHER2
subroutine	dsyr2 (uplo, n, alpha, x, incx, y, incy, a, lda)
	DSYR2
subroutine	ssyr2 (uplo, n, alpha, x, incx, y, incy, a, lda)
	SSYR2
subroutine	zher2 (uplo, n, alpha, x, incx, y, incy, a, lda)
	ZHER2

Detailed Description