DZSUM1 forms the 1-norm of the complex vector using the true absolute value.
DZSUM1 takes the sum of the absolute values of a complex vector and returns a double precision result. Based on DZASUM from the Level 1 BLAS. The change is to use the 'genuine' absolute value.
N is INTEGER The number of elements in the vector CX.
CX is COMPLEX*16 array, dimension (N) The vector whose elements will be summed.
INCX is INTEGER The spacing between successive values of CX. INCX > 0.
Univ. of California Berkeley
Univ. of Colorado Denver
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