LAPACK  3.6.0
LAPACK: Linear Algebra PACKage

§ snrm2()

real function snrm2 ( integer  N,
real, dimension(*)  X,
integer  INCX 
)

SNRM2

Purpose:
 SNRM2 returns the euclidean norm of a vector via the function
 name, so that

    SNRM2 := sqrt( x'*x ).
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
November 2011
Further Details:
  -- This version written on 25-October-1982.
     Modified on 14-October-1993 to inline the call to SLASSQ.
     Sven Hammarling, Nag Ltd.