관리-도구

편집 파일: exponent_spec.rb

require_relative '../../../spec_helper' ruby_version_is ''...'2.5' do require 'mathn' describe "Bignum#**" do before :each do @bignum = bignum_value(47) end it "returns self raised to other (positive) power" do (@bignum ** 4).should == 7237005577332262361485077344629993318496048279512298547155833600056910050625 (@bignum ** 1.2).should be_close(57262152889751597425762.57804, TOLERANCE) end it "returns a complex number when negative and raised to a fractional power" do ((-@bignum) ** (1/3)).should be_close(Complex(1048576,1816186.907597341), TOLERANCE) ((-@bignum) ** (1.0/3)).should be_close(Complex(1048576,1816186.907597341), TOLERANCE) end end end