def test_fresnel_cos_small(self, dtype):
x = np.random.uniform(0., 1., size=int(1e4)).astype(dtype)
try:
from scipy import special # pylint: disable=g-import-not-at-top
self.assertAllClose(
special.fresnel(x)[1], self.evaluate(special_math_ops.fresnel_cos(x)))
except ImportError as e:
tf_logging.warn('Cannot test special functions: %s' % str(e))
def test_fresnel_cos_odd(self, dtype):
x = np.random.uniform(-100., 100., size=int(1e4)).astype(dtype)
self.assertAllClose(
self.evaluate(special_math_ops.fresnel_cos(x)),
self.evaluate(-special_math_ops.fresnel_cos(-x)))
def test_fresnel_cos_boundary(self):
self.assertAllClose(0., special_math_ops.fresnel_cos(0.))
self.assertTrue(
np.isnan(self.evaluate(special_math_ops.fresnel_cos(np.nan))))