method

to_d

v2_2_9 - Show latest stable - Class: Rational

to_d(precision)

public

The required precision parameter is used to determine the amount of significant digits for the result. See BigDecimal#div for more information, as it is used along with the #denominator and the precision for parameters.

r = (22/7.0).to_r
# => (7077085128725065/2251799813685248)
r.to_d(3)
# => #<BigDecimal:1a44d08,'0.314E1',18(36)>

# File ext/bigdecimal/lib/bigdecimal/util.rb, line 120
  def to_d(precision)
    if precision <= 0
      raise ArgumentError, "negative precision"
    end
    num = self.numerator
    BigDecimal(num).div(self.denominator, precision)
  end

to_d

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