2. EL 8
  3. blas
  4. dznrm2(3)

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dznrm2.f(3) LAPACK dznrm2.f(3)

NAME

dznrm2.f

SYNOPSIS

Functions/Subroutines


double precision function dznrm2 (N, X, INCX)
DZNRM2

Function/Subroutine Documentation

double precision function dznrm2 (integer N, complex*16, dimension(*) X, integer INCX)

DZNRM2

Purpose: 



 DZNRM2 returns the euclidean norm of a vector via the function


 name, so that


    DZNRM2 := sqrt( x**H*x )

Parameters:

N 



          N is INTEGER


         number of elements in input vector(s)

X



          X is COMPLEX*16 array, dimension (N)


         complex vector with N elements

INCX



          INCX is INTEGER


         storage spacing between elements of X

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

November 2017

Further Details: 



  -- This version written on 25-October-1982.


     Modified on 14-October-1993 to inline the call to ZLASSQ.


     Sven Hammarling, Nag Ltd.

Definition at line 77 of file dznrm2.f.

Author

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