관리-도구

편집 파일: exponent_spec.rb

require_relative '../../../spec_helper' ruby_version_is ''...'2.5' do require 'mathn' describe "Float#**" do it "returns self raised to other (positive) power" do (2.0 ** 4).should == 16.0 (2.0 ** 1.2).should be_close(2.2973967, TOLERANCE) end it "returns a complex number when negative and raised to a fractional power" do ((-8.0) ** (1/3)).should be_close(Complex(1, 1.73205), TOLERANCE) ((-8.0) ** (1.0/3)).should be_close(Complex(1, 1.73205), TOLERANCE) end end end