Yes, I was referring to `pow`, but I had in mind the C++ version, which is overloaded: http://www.cplusplus.com/reference/cmath/pow/ Cheers, Alan On 5/20/2016 4:27 PM, Warren Weckesser wrote: > C doesn't have an exponentiation operator. The C math library has pow, powf and powl, which (like any C functions) are explicitly typed.