def test_AuxiliarTrefethenStrip(self):
"""Test for Auxiliary functions using in Trefethen Strip."""
xref = np.array([-1.0, 0.0, 1.0])
dref = np.array([10.7807092, 0.65413403, 10.7807092])
newx = _gstrip(1.1, xref)
newd = _dergstrip(1.1, xref)
assert_allclose(xref, newx)
assert_allclose(dref, newd)
def test_TrefethenStripCC(self):
"""Test for Trefethen - Strip Clenshaw Curtis."""
grid = TrefethenStripCC(10, 1.1)
tmp = ClenshawCurtis(10)
new_points = _gstrip(1.1, tmp.points)
new_weights = _dergstrip(1.1, tmp.points) * tmp.weights
assert_allclose(grid.points, new_points)
assert_allclose(grid.weights, new_weights)
def test_TrefethenStripGC2(self):
"""Test for Trefethen - Strip Gauss Chebyshev 2."""
grid = TrefethenStripGC2(10, 1.1)
tmp = GaussChebyshevType2(10)
new_points = _gstrip(1.1, tmp.points)
new_weights = _dergstrip(1.1, tmp.points) * tmp.weights
assert_allclose(grid.points, new_points)
assert_allclose(grid.weights, new_weights)