class Rational - bigdecimal: Ruby Standard Library Documentation

# class Rational

### Public Instance Methods

to_d(precision) → bigdecimal click to toggle source

Returns the value as a `BigDecimal`.

The required `precision` parameter is used to determine the number of significant digits for the result.

    require 'bigdecimal'
    require 'bigdecimal/util'

    Rational(22, 7).to_d(3)   # => 0.314e1

See also `Kernel.BigDecimal`.

    # File bigdecimal-3.1.8/lib/bigdecimal/util.rb, line 132
    def to_d(precision)
      BigDecimal(self, precision)
    end