Python isnan Examples

Example #1

File: test_basic.py Project: zequequiel/pyinterval

 def test_max(self):
     "Verify corner cases with nan, -inf, +inf"
     assert fpu.max((1.0, 2.0))           == 2.0
     assert fpu.max((1.0, fpu.infinity))  == fpu.infinity
     assert fpu.max((1.0, -fpu.infinity)) == 1.0
     assert fpu.isnan(fpu.max((1.0, fpu.nan)))

Example #2

File: test_basic.py Project: dpsanders/pyinterval

 def test_max(self):
     "Verify corner cases with nan, -inf, +inf"
     self.assertEqual(fpu.max((1.0, 2.0)), 2.0)
     self.assertEqual(fpu.max((1.0, fpu.infinity)), fpu.infinity)
     self.assertEqual(fpu.max((1.0, -fpu.infinity)), 1.0)
     self.assertTrue(fpu.isnan(fpu.max((1.0, fpu.nan))))

Example #3

File: test_basic.py Project: zequequiel/pyinterval

 def test_ieee754(self):
     "fpu.float respect ieee754 semantics."
     assert fpu.infinity + fpu.infinity == fpu.infinity
     assert fpu.isnan(fpu.nan)
     assert fpu.isnan(0.0 * fpu.infinity)
     assert fpu.isnan(fpu.infinity - fpu.infinity)

Example #4

File: test_basic.py Project: dpsanders/pyinterval

 def test_ieee754(self):
     "fpu.float respect ieee754 semantics."
     self.assertEqual(fpu.infinity + fpu.infinity, fpu.infinity)
     self.assertTrue(fpu.isnan(fpu.nan))
     self.assertTrue(fpu.isnan(0.0 * fpu.infinity))
     self.assertTrue(fpu.isnan(fpu.infinity - fpu.infinity))

Example #5

File: test_basic.py Project: dorellang/pyinterval

 def test_max(self):
     "Verify corner cases with nan, -inf, +inf"
     self.assertEqual(fpu.max((1.0, 2.0)), 2.0)
     self.assertEqual(fpu.max((1.0, fpu.infinity)), fpu.infinity)
     self.assertEqual(fpu.max((1.0, -fpu.infinity)), 1.0)
     self.assertTrue(fpu.isnan(fpu.max((1.0, fpu.nan))))

Example #6

File: test_basic.py Project: dorellang/pyinterval

 def test_ieee754(self):
     "fpu.float respect ieee754 semantics."
     self.assertEqual(fpu.infinity + fpu.infinity, fpu.infinity)
     self.assertTrue(fpu.isnan(fpu.nan))
     self.assertTrue(fpu.isnan(0.0 * fpu.infinity))
     self.assertTrue(fpu.isnan(fpu.infinity - fpu.infinity))

Example #7

File: test_basic.py Project: akshatd/pyinterval

 def test_max(self):
     "Verify corner cases with nan, -inf, +inf"
     assert fpu.max((1.0, 2.0))           == 2.0
     assert fpu.max((1.0, fpu.infinity))  == fpu.infinity
     assert fpu.max((1.0, -fpu.infinity)) == 1.0
     assert fpu.isnan(fpu.max((1.0, fpu.nan)))

Example #8

File: test_basic.py Project: akshatd/pyinterval

 def test_ieee754(self):
     "fpu.float respect ieee754 semantics."
     assert fpu.infinity + fpu.infinity == fpu.infinity
     assert fpu.isnan(fpu.nan)
     assert fpu.isnan(0.0 * fpu.infinity)
     assert fpu.isnan(fpu.infinity - fpu.infinity)