class Keisan::Functions::Erf

Public Class Methods

new() click to toggle source
Calls superclass method
# File lib/keisan/functions/erf.rb, line 4
def initialize
  super("erf")
end

Protected Class Methods

derivative(argument) click to toggle source
# File lib/keisan/functions/erf.rb, line 10
def self.derivative(argument)
  2/Math.sqrt(Math::PI) * AST::Function.new([-argument**2], "exp")
end