External module "minpack/enorm"

enorm

• enorm(n: number, x: number[]): number

• function enorm

  given an n-vector x, this function calculates the
  euclidean norm of x.
  
  the euclidean norm is computed by accumulating the sum of
  squares in three different sums. the sums of squares for the
  small and large components are scaled so that no overflows
  occur. non-destructive underflows are permitted. underflows
  and overflows do not occur in the computation of the unscaled
  sum of squares for the intermediate components.
  the definitions of small, intermediate and large components
  depend on two constants, rdwarf and rgiant. the main
  restrictions on these constants are that rdwarf**2 not
  underflow and rgiant**2 not overflow. the constants
  given here are suitable for every known computer.
  
  the function statement is

  double precision function enorm(n,x)

  where

  Parameters

  • n: number

    is a positive integer input variable.

  • x: number[]

    is an input array of length n.

    subprograms called

    fortran-supplied ... dabs,dsqrt

    argonne national laboratory. minpack project. march 1980.
    burton s. garbow, kenneth e. hillstrom, jorge j. more

  Returns number