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Complex matrix multiplication speed up my explicitly coding the

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derivatives
This commit is contained in:
Fabian Joswig 2021-10-18 17:36:49 +01:00
parent b1e5777586
commit 877b1a4467
2 changed files with 15 additions and 1 deletions
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12
pyerrors/pyerrors.py
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@ -655,6 +655,9 @@ class CObs:
if isinstance(self.imag, Obs): if isinstance(self.imag, Obs):
self.imag.gamma_method(**kwargs) self.imag.gamma_method(**kwargs)
def is_zero(self):
return self.real == 0.0 and self.imag == 0.0
def conjugate(self): def conjugate(self):
return CObs(self.real, -self.imag) return CObs(self.real, -self.imag)
@ -678,7 +681,14 @@ class CObs:
return -1 * (self - other) return -1 * (self - other)
def __mul__(self, other): def __mul__(self, other):
if hasattr(other, 'real') and hasattr(other, 'imag'): if all(isinstance(i, Obs) for i in [self.real, self.imag, other.real, other.imag]):
return CObs(derived_observable(lambda x, **kwargs: x[0] * x[1] - x[2] * x[3],
[self.real, other.real, self.imag, other.imag],
man_grad=[other.real.value, self.real.value, -other.imag.value, -self.imag.value]),
derived_observable(lambda x, **kwargs: x[2] * x[1] + x[0] * x[3],
[self.real, other.real, self.imag, other.imag],
man_grad=[other.imag.value, self.imag.value, other.real.value, self.real.value]))
elif hasattr(other, 'real') and hasattr(other, 'imag'):
return CObs(self.real * other.real - self.imag * other.imag, return CObs(self.real * other.real - self.imag * other.imag,
self.imag * other.real + self.real * other.imag) self.imag * other.real + self.real * other.imag)
else: else:

4
tests/test_pyerrors.py
View file

@ -204,6 +204,10 @@ def test_cobs():
assert (my_cobs - my_cobs.conjugate()).real.is_zero() assert (my_cobs - my_cobs.conjugate()).real.is_zero()
assert not (my_cobs - my_cobs.conjugate()).imag.is_zero() assert not (my_cobs - my_cobs.conjugate()).imag.is_zero()
np.abs(my_cobs) np.abs(my_cobs)
assert (my_cobs * my_cobs / my_cobs - my_cobs).is_zero()
assert (my_cobs + my_cobs - 2 * my_cobs).is_zero()
fs = [[lambda x: x[0] + x[1], lambda x: x[1] + x[0]], fs = [[lambda x: x[0] + x[1], lambda x: x[1] + x[0]],
[lambda x: x[0] * x[1], lambda x: x[1] * x[0]]] [lambda x: x[0] * x[1], lambda x: x[1] * x[0]]]
for other in [1, 1.1, (1.1-0.2j), pe.CObs(obs1), pe.CObs(obs1, obs2)]: for other in [1, 1.1, (1.1-0.2j), pe.CObs(obs1), pe.CObs(obs1, obs2)]: