DZNRM2 returns the euclidean norm of a vector via the function name, so that DZNRM2 := sqrt( x**H*x )
N is INTEGER number of elements in input vector(s)
X is COMPLEX*16 array, dimension (N) complex vector with N elements
INCX is INTEGER storage spacing between elements of X
Univ. of California Berkeley
Univ. of Colorado Denver
-- This version written on 25-October-1982. Modified on 14-October-1993 to inline the call to ZLASSQ. Sven Hammarling, Nag Ltd.
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