Template Function manif::internal::csqrt¶ Defined in File constants.h Function Documentation¶ template<typename T>T constexpr manif::internal::csqrt(T x)¶ Constexpr version of the square root Return value: For a finite and non-negative value of “x”, returns an approximation for the square root of “x” Otherwise, returns NaN credits : https://stackoverflow.com/a/34134071/9709397