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to_d

        # Rational.to_d

(from ruby core)
---
    rat.to_d(precision)  -> bigdecimal

---

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 BigDecimal::new.



      

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