| cdef extern from "<numbers>" namespace "std::numbers" nogil: | |
| # C++20 mathematical constants | |
| const double e | |
| const double log2e | |
| const double log10e | |
| const double pi | |
| const double inv_pi | |
| const double inv_sqrtpi | |
| const double ln2 | |
| const double ln10 | |
| const double sqrt2 | |
| const double sqrt3 | |
| const double inv_sqrt3 | |
| const double egamma | |
| const double phi | |