class Float

# File lib/kgl/kmath.rb, line 17
def to_r
        str=self.to_s
        (decimal,power)=str.split(/e/)
        (integer,decimal)=decimal.split(/\./)
        length=decimal.length
        numerator=integer.to_i*10**length+decimal.to_i
        denominator=10**length
        power=power.to_i
        if power>0
                numerator*=10**power
        else
                denominator*=10**(-power)
        end
        return Rational(numerator,denominator)
end