def checkSolve(f, a, x0):
sol = solveByMinimize(f, a, x0, length=length)
self.assertAlmostEqual(la.norm(f(sol)[0] - a), 0.0)
def checkSolve(f, a, x0):
sol = solveByMinimize(f, a, x0, length=length)
self.assertAlmostEqual(la.norm(f(sol)[0] - a), 0.0)
def inv(self, y, length = -100):
# (FIXME : could consider different starting points (e.g. 0.0))
def F(x):
return self(x), np.array([self.deriv(x)])
return solveByMinimize(F, y, y, length = length)