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to_d

r.to_d(precision) â bigdecimal

Instance Public methods

Converts a Rational to a BigDecimal.

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)>

Links:

https://github.com/ruby/ruby/blob/2cd83035a867cec68323d32c975fccf311675055/ext/bigdecimal/lib/bigdecimal/util.rb#L99

doc_ruby_on_rails

2015-05-01 04:24:24

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