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 asserter(self):
coeffs = rand(n)
values = _coeffs2vals(coeffs)
_coeffs_ = _vals2coeffs(values)
self.assertLessEqual(infnorm(coeffs - _coeffs_), scaled_tol(n))
def asserter(self):
values = np.random.rand(n)
coeffs = _vals2coeffs(values)
_values_ = _coeffs2vals(coeffs)
self.assertLessEqual( infnorm(values-_values_), scaled_tol(n) )
def asserter(self):
coeffs = np.random.rand(n)
values = _coeffs2vals(coeffs)
_coeffs_ = _vals2coeffs(values)
self.assertLessEqual( infnorm(coeffs-_coeffs_), scaled_tol(n) )