Module: Electr::EvalFunction

Defined in:
lib/electr/repl/eval_function.rb

Class Method Summary collapse

Class Method Details

.eval(function_name, stack) ⇒ Object 



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# File 'lib/electr/repl/eval_function.rb', line 5

def self.eval(function_name, stack)
  case function_name
  when "sqrt", "√"
    a = stack.pop
    stack.push(Math::sqrt(a))
  when "sin"
    a = stack.pop
    stack.push(Math::sin(a))
  when "cos"
    a = stack.pop
    stack.push(Math::cos(a))
  when "tan"
    a = stack.pop
    stack.push(Math::tan(a))
  end
end