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Aide de Scilab >> Fonctions spéciales > dawson

dawson

Compute the Dawson (scaled imaginary error) function.

Syntax

y = dawson(x)

Arguments

x

vector or matrix

y

vector or matrix (of same size than x)

Description

dawson computes scaled imaginary error function function:

\mathrm{Dawson}(z) = \frac{\sqrt{\pi}}{2} e^{-z^2} \mathrm{erfi}(z)

Examples

x = [0.1, 1, 1+2*%i,-1+2*%i,1e-4+2e-4*%i,0+2*%i];
dawson(x)
dawson(-x)

Algorithms

This function is based on the Faddeeva package library.

See also

  • erf — fonction erreur
  • erfc — fonction erreur complémentaire.
  • calerf — calcule différentes fonctions d'erreur.

History

VersionDescription
5.5.0 Function dawson introduced
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Last updated:
Tue Feb 25 08:50:24 CET 2020