Hi folks, I want to introduce incompatible changes of Rational#to_d about a precision argument. After this change, Rational#to_d requires a positive precision, and it raises ArgumentError when zero or a negative precision is passed. The reason why this change is needed is the implicit precision is not universal. Who will be in trouble with this change? -- Kenta Murata Sent with Sparrow (http://www.sparrowmailapp.com)