The C.math.NET library implements several C Standard functions that are missing from the .NET framework. Functions include among others: frexp, ilogb, ldexp, logb, scalbn, copysign, nextafter, isunordered, and fpclassify. Both double and single precision functions are implemented. All functions are static and their names follow the C Standard.

All functions have been thoroughly tested using a large set of unit tests that cover all limit cases to guarantee that all functions behave as specified by the C standard.