def test_bary__empty(self):
null = (None, None)
self.assertEquals(bary(np.array([]), np.array([]), *null).size, 0)
self.assertEquals(bary(np.array([.1]), np.array([]), *null).size, 0)
self.assertEquals(bary(np.array([]), np.array([.1]), *null).size, 0)
self.assertEquals(bary(self.pts, np.array([]), *null).size, 0)
self.assertEquals(bary(np.array([]), self.pts, *null).size, 0)
self.assertNotEquals(bary(np.array([.1]), np.array([.1]), *null).size, 0)
def evalTester(method, fun, evalpts, chebpts):
x = evalpts
xk = chebpts
fvals = fun(xk)
if method is bary:
vk = Chebtech2._barywts(fvals.size)
a = bary(x, fvals, xk, vk)
tol_multiplier = 1e0
elif method is clenshaw:
ak = Chebtech2._vals2coeffs(fvals)
a = clenshaw(x, ak)
tol_multiplier = 2e1
b = fun(evalpts)
n = evalpts.size
tol = tol_multiplier * scaled_tol(n)
return infNormLessThanTol(a, b, tol)
def evalTester(method, fun, evalpts, chebpts):
x = evalpts
xk = chebpts
fvals = fun(xk)
if method is bary:
vk = Chebtech2._barywts(fvals.size)
a = bary(x, fvals, xk, vk)
tol_multiplier = 1e0
elif method is clenshaw:
ak = Chebtech2._vals2coeffs(fvals)
a = clenshaw(x, ak)
tol_multiplier = 2e1
b = fun(evalpts)
n = evalpts.size
tol = tol_multiplier * scaled_tol(n)
return infNormLessThanTol(a, b, tol)
def __call__bary(self, x):
fk = self.values()
xk = self._chebpts(fk.size)
vk = self._barywts(fk.size)
return bary(x, fk, xk, vk)
def test_bary__scalar_input(self):
for x in self.xx:
self.assertTrue(np.isscalar(bary(x, self.fk, self.xk, self.vk)))
self.assertFalse(np.isscalar(bary(xx, self.fk, self.xk, self.vk)))
def test_bary__scalar_input(self):
for x in self.xx:
self.assertTrue(np.isscalar(bary(x,self.fk,self.xk,self.vk)))
self.assertFalse(np.isscalar(bary(xx,self.fk,self.xk,self.vk)))
def __call__bary(self, x):
fk = self.values()
xk = self._chebpts(fk.size)
vk = self._barywts(fk.size)
return bary(x, fk, xk, vk)
