NAME

dznrm2 - Return the Euclidian norm of a vector. 

SYNOPSIS

DOUBLE PRECISION FUNCTION DZNRM2 (N, X, INCX)

double dznrm2(long int n, doublecomplex ∗zx, long int incx)

INTEGER INCX, N

COMPLEX∗16    X( ∗ )

PURPOSE

DZNRM2 - Return the Euclidian norm of a vector x where x is an n-vector. 
 

PARAMETERS

N      - INTEGER. 
On entry, N specifies the number of elements in the vector.  N must be at least one for the subroutine to have any visible effect.  Unchanged on exit.

X      - COMPLEX∗16 array of DIMENSION at least
( 1 + ( m - 1 )∗abs( INCX ) ). On entry, the incremented array X must contain the vector x.  Unchanged on exit.

INCX   - INTEGER. 
On entry, INCX specifies the increment for the elements of X.  INCX must be positive. Unchanged on exit.

Sun, Inc.  —  Last change: 20 Sep 1996