File: power.rb

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require 'bench_press'
require 'bigdecimal'
extend BenchPress

name 'Float vs Rational power'
author 'Claudio Bustos'
date '2011-02-02'
summary "
On ruby, the maximum size of a float is #{Float::MAX}. 
With Rational, we can raise to integer numbers and surpass Float maximum.
What is the speed reduction using Rational?"

reps 1000 #number of repetitions
int=10
rat=10.quo(1)
bd=BigDecimal("10")
measure "Using float pow" do
	int**307
end

measure "Using rational" do
	rat**307
end

measure "Using big decimal pow" do
	bd**307
end