(self, other)
| 462 | return self + (-other) |
| 463 | |
| 464 | def __rsub__(self, other): |
| 465 | if isinstance(other, number_types): |
| 466 | return as_number(other) - self |
| 467 | return NotImplemented |
| 468 | |
| 469 | def __mul__(self, other): |
| 470 | other = as_expr(other) |
nothing calls this directly
no test coverage detected