sum1: sum | x_i | (in LAPACK)

Functions
double precision function	dzsum1 (n, cx, incx)
	DZSUM1 forms the 1-norm of the complex vector using the true absolute value.
real function	scsum1 (n, cx, incx)
	SCSUM1 forms the 1-norm of the complex vector using the true absolute value.

Detailed Description