Returns a multiplied by b, plus c. The first two operands are multiplied together, using multiply, the third operand is then added to the result of that multiplication, using add, all with only one final rounding. >>> ExtendedContext.fma(Decimal('3'), Decimal('5'),
(self, a, b, c)
| 4439 | return a.exp(context=self) |
| 4440 | |
| 4441 | def fma(self, a, b, c): |
| 4442 | """Returns a multiplied by b, plus c. |
| 4443 | |
| 4444 | The first two operands are multiplied together, using multiply, |
| 4445 | the third operand is then added to the result of that |
| 4446 | multiplication, using add, all with only one final rounding. |
| 4447 | |
| 4448 | >>> ExtendedContext.fma(Decimal('3'), Decimal('5'), Decimal('7')) |
| 4449 | Decimal('22') |
| 4450 | >>> ExtendedContext.fma(Decimal('3'), Decimal('-5'), Decimal('7')) |
| 4451 | Decimal('-8') |
| 4452 | >>> ExtendedContext.fma(Decimal('888565290'), Decimal('1557.96930'), Decimal('-86087.7578')) |
| 4453 | Decimal('1.38435736E+12') |
| 4454 | >>> ExtendedContext.fma(1, 3, 4) |
| 4455 | Decimal('7') |
| 4456 | >>> ExtendedContext.fma(1, Decimal(3), 4) |
| 4457 | Decimal('7') |
| 4458 | >>> ExtendedContext.fma(1, 3, Decimal(4)) |
| 4459 | Decimal('7') |
| 4460 | """ |
| 4461 | a = _convert_other(a, raiseit=True) |
| 4462 | return a.fma(b, c, context=self) |
| 4463 | |
| 4464 | def is_canonical(self, a): |
| 4465 | """Return True if the operand is canonical; otherwise return False. |