C# の double の % - ganaware’s blog

C# 5.0 の double の % がなんか仕様とは異なる値を返す気がするという話。 Download C# Language Specification 5.0 from Official Microsoft Download Center C# 5.0 の言語仕様によれば、 7.8.3 Remainder operator Floating-point remainder: double operator %(double x, double y); z is the result of x % y and is computed as x - n * y, where n is the largest possible integer that is less than or equal to x / y. とのことなので、n = Floor(x / y) のハズ...。でも実際