class Keisan::Functions::Cos
Public Class Methods
new()
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Calls superclass method
Keisan::Functions::CMathFunction::new
# File lib/keisan/functions/cos.rb, line 4 def initialize super("cos") end
Protected Class Methods
derivative(argument)
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# File lib/keisan/functions/cos.rb, line 10 def self.derivative(argument) -AST::Function.new([argument], "sin") end