The following functions drop to the double-precision implementations in System.Math: - [x] Exp/Pow (partially, integral powers use BigInteger implementation) - [ ] Sin - [ ] Cos - [ ] Tan - [ ] Sinh - [ ] Cosh - [ ] Tanh - [ ] Asin - [ ] Acos - [ ] Atan/Atan2 - [x] Sqrt - [x] Log/Log10