Commit 83c74e7b authored by Martin Reinecke's avatar Martin Reinecke
Browse files

allow QuadraticEnergy without 'b' term

parent f44ec28a
Pipeline #26373 passed with stages
in 5 minutes and 34 seconds
......@@ -31,12 +31,14 @@ class QuadraticEnergy(Energy):
self._b = b
if _grad is not None:
self._grad = _grad
Ax = _grad + self._b
Ax = _grad if b is None else _grad + b
Ax = self._A(self.position)
self._grad = Ax - self._b
self._grad = Ax if b is None else Ax - b
self._value = 0.5*self.position.vdot(Ax) - b.vdot(self.position)
self._value = 0.5*self.position.vdot(Ax)
if b is not None:
self._value -= b.vdot(self.position)
def at(self, position):
return QuadraticEnergy(position=position, A=self._A, b=self._b)
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