Python numpy.PZERO Examples
The following are 30
code examples of numpy.PZERO().
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Example #1
Source File: test_constants.py From chainer with MIT License | 6 votes |
def test_constants(): assert chainerx.Inf is numpy.Inf assert chainerx.Infinity is numpy.Infinity assert chainerx.NAN is numpy.NAN assert chainerx.NINF is numpy.NINF assert chainerx.NZERO is numpy.NZERO assert chainerx.NaN is numpy.NaN assert chainerx.PINF is numpy.PINF assert chainerx.PZERO is numpy.PZERO assert chainerx.e is numpy.e assert chainerx.euler_gamma is numpy.euler_gamma assert chainerx.inf is numpy.inf assert chainerx.infty is numpy.infty assert chainerx.nan is numpy.nan assert chainerx.newaxis is numpy.newaxis assert chainerx.pi is numpy.pi
Example #2
Source File: test_umath_complex.py From GraphicDesignPatternByPython with MIT License | 5 votes |
def test_zero(self): # carg(-0 +- 0i) returns +- pi check_real_value(ncu._arg, np.NZERO, np.PZERO, np.pi, False) check_real_value(ncu._arg, np.NZERO, np.NZERO, -np.pi, False) # carg(+0 +- 0i) returns +- 0 check_real_value(ncu._arg, np.PZERO, np.PZERO, np.PZERO) check_real_value(ncu._arg, np.PZERO, np.NZERO, np.NZERO) # carg(x +- 0i) returns +- 0 for x > 0 check_real_value(ncu._arg, 1, np.PZERO, np.PZERO, False) check_real_value(ncu._arg, 1, np.NZERO, np.NZERO, False) # carg(x +- 0i) returns +- pi for x < 0 check_real_value(ncu._arg, -1, np.PZERO, np.pi, False) check_real_value(ncu._arg, -1, np.NZERO, -np.pi, False) # carg(+- 0 + yi) returns pi/2 for y > 0 check_real_value(ncu._arg, np.PZERO, 1, 0.5 * np.pi, False) check_real_value(ncu._arg, np.NZERO, 1, 0.5 * np.pi, False) # carg(+- 0 + yi) returns -pi/2 for y < 0 check_real_value(ncu._arg, np.PZERO, -1, 0.5 * np.pi, False) check_real_value(ncu._arg, np.NZERO, -1, -0.5 * np.pi, False) #def test_branch_cuts(self): # _check_branch_cut(ncu._arg, -1, 1j, -1, 1)
Example #3
Source File: test_utils.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
def test_negative_zero(self): self._test_not_equal(np.PZERO, np.NZERO)
Example #4
Source File: test_umath.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
def test_positive_zero(self): # atan2(y, +-0) returns +pi/2 for y > 0. assert_almost_equal(ncu.arctan2(1, np.PZERO), 0.5 * np.pi) assert_almost_equal(ncu.arctan2(1, np.NZERO), 0.5 * np.pi)
Example #5
Source File: test_utils.py From pySINDy with MIT License | 5 votes |
def test_negative_zero(self): self._test_not_equal(np.PZERO, np.NZERO)
Example #6
Source File: test_utils.py From pySINDy with MIT License | 5 votes |
def test_nan(self): # Test that nan is 'far' from small, tiny, inf, max and min for dt in [np.float32, np.float64]: if dt == np.float32: maxulp = 1e6 else: maxulp = 1e12 inf = np.array([np.inf]).astype(dt) nan = np.array([np.nan]).astype(dt) big = np.array([np.finfo(dt).max]) tiny = np.array([np.finfo(dt).tiny]) zero = np.array([np.PZERO]).astype(dt) nzero = np.array([np.NZERO]).astype(dt) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, inf, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, big, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, tiny, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, zero, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, nzero, maxulp=maxulp))
Example #7
Source File: test_umath_complex.py From pySINDy with MIT License | 5 votes |
def test_simple(self): check_real_value(ncu._arg, 1, 0, 0, False) check_real_value(ncu._arg, 0, 1, 0.5*np.pi, False) check_real_value(ncu._arg, 1, 1, 0.25*np.pi, False) check_real_value(ncu._arg, np.PZERO, np.PZERO, np.PZERO) # TODO This can be xfail when the generator functions are got rid of.
Example #8
Source File: test_umath_complex.py From pySINDy with MIT License | 5 votes |
def test_zero(self): # carg(-0 +- 0i) returns +- pi check_real_value(ncu._arg, np.NZERO, np.PZERO, np.pi, False) check_real_value(ncu._arg, np.NZERO, np.NZERO, -np.pi, False) # carg(+0 +- 0i) returns +- 0 check_real_value(ncu._arg, np.PZERO, np.PZERO, np.PZERO) check_real_value(ncu._arg, np.PZERO, np.NZERO, np.NZERO) # carg(x +- 0i) returns +- 0 for x > 0 check_real_value(ncu._arg, 1, np.PZERO, np.PZERO, False) check_real_value(ncu._arg, 1, np.NZERO, np.NZERO, False) # carg(x +- 0i) returns +- pi for x < 0 check_real_value(ncu._arg, -1, np.PZERO, np.pi, False) check_real_value(ncu._arg, -1, np.NZERO, -np.pi, False) # carg(+- 0 + yi) returns pi/2 for y > 0 check_real_value(ncu._arg, np.PZERO, 1, 0.5 * np.pi, False) check_real_value(ncu._arg, np.NZERO, 1, 0.5 * np.pi, False) # carg(+- 0 + yi) returns -pi/2 for y < 0 check_real_value(ncu._arg, np.PZERO, -1, 0.5 * np.pi, False) check_real_value(ncu._arg, np.NZERO, -1, -0.5 * np.pi, False) #def test_branch_cuts(self): # _check_branch_cut(ncu._arg, -1, 1j, -1, 1)
Example #9
Source File: test_umath.py From pySINDy with MIT License | 5 votes |
def test_zero_nzero(self): # atan2(+-0, -0) returns +-pi. assert_almost_equal(ncu.arctan2(np.PZERO, np.NZERO), np.pi) assert_almost_equal(ncu.arctan2(np.NZERO, np.NZERO), -np.pi)
Example #10
Source File: test_umath.py From pySINDy with MIT License | 5 votes |
def test_zero_pzero(self): # atan2(+-0, +0) returns +-0. assert_arctan2_ispzero(np.PZERO, np.PZERO) assert_arctan2_isnzero(np.NZERO, np.PZERO)
Example #11
Source File: test_umath.py From pySINDy with MIT License | 5 votes |
def test_zero_negative(self): # atan2(+-0, x) returns +-pi for x < 0. assert_almost_equal(ncu.arctan2(np.PZERO, -1), np.pi) assert_almost_equal(ncu.arctan2(np.NZERO, -1), -np.pi)
Example #12
Source File: test_umath.py From pySINDy with MIT License | 5 votes |
def test_zero_positive(self): # atan2(+-0, x) returns +-0 for x > 0. assert_arctan2_ispzero(np.PZERO, 1) assert_arctan2_isnzero(np.NZERO, 1)
Example #13
Source File: test_umath.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
def test_zero_positive(self): # atan2(+-0, x) returns +-0 for x > 0. assert_arctan2_ispzero(np.PZERO, 1) assert_arctan2_isnzero(np.NZERO, 1)
Example #14
Source File: test_umath.py From GraphicDesignPatternByPython with MIT License | 5 votes |
def test_zero_negative(self): # atan2(+-0, x) returns +-pi for x < 0. assert_almost_equal(ncu.arctan2(np.PZERO, -1), np.pi) assert_almost_equal(ncu.arctan2(np.NZERO, -1), -np.pi)
Example #15
Source File: test_umath.py From GraphicDesignPatternByPython with MIT License | 5 votes |
def test_zero_pzero(self): # atan2(+-0, +0) returns +-0. assert_arctan2_ispzero(np.PZERO, np.PZERO) assert_arctan2_isnzero(np.NZERO, np.PZERO)
Example #16
Source File: test_umath.py From GraphicDesignPatternByPython with MIT License | 5 votes |
def test_zero_nzero(self): # atan2(+-0, -0) returns +-pi. assert_almost_equal(ncu.arctan2(np.PZERO, np.NZERO), np.pi) assert_almost_equal(ncu.arctan2(np.NZERO, np.NZERO), -np.pi)
Example #17
Source File: test_umath.py From GraphicDesignPatternByPython with MIT License | 5 votes |
def test_zero_positive(self): # atan2(+-0, x) returns +-0 for x > 0. assert_arctan2_ispzero(np.PZERO, 1) assert_arctan2_isnzero(np.NZERO, 1)
Example #18
Source File: test_umath_complex.py From GraphicDesignPatternByPython with MIT License | 5 votes |
def test_simple(self): check_real_value(ncu._arg, 1, 0, 0, False) check_real_value(ncu._arg, 0, 1, 0.5*np.pi, False) check_real_value(ncu._arg, 1, 1, 0.25*np.pi, False) check_real_value(ncu._arg, np.PZERO, np.PZERO, np.PZERO) # TODO This can be xfail when the generator functions are got rid of.
Example #19
Source File: test_utils.py From GraphicDesignPatternByPython with MIT License | 5 votes |
def test_nan(self): # Test that nan is 'far' from small, tiny, inf, max and min for dt in [np.float32, np.float64]: if dt == np.float32: maxulp = 1e6 else: maxulp = 1e12 inf = np.array([np.inf]).astype(dt) nan = np.array([np.nan]).astype(dt) big = np.array([np.finfo(dt).max]) tiny = np.array([np.finfo(dt).tiny]) zero = np.array([np.PZERO]).astype(dt) nzero = np.array([np.NZERO]).astype(dt) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, inf, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, big, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, tiny, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, zero, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, nzero, maxulp=maxulp))
Example #20
Source File: test_utils.py From GraphicDesignPatternByPython with MIT License | 5 votes |
def test_negative_zero(self): self._test_not_equal(np.PZERO, np.NZERO)
Example #21
Source File: test_umath.py From Mastering-Elasticsearch-7.0 with MIT License | 5 votes |
def test_positive_zero(self): # atan2(y, +-0) returns +pi/2 for y > 0. assert_almost_equal(ncu.arctan2(1, np.PZERO), 0.5 * np.pi) assert_almost_equal(ncu.arctan2(1, np.NZERO), 0.5 * np.pi)
Example #22
Source File: test_umath.py From Mastering-Elasticsearch-7.0 with MIT License | 5 votes |
def test_zero_positive(self): # atan2(+-0, x) returns +-0 for x > 0. assert_arctan2_ispzero(np.PZERO, 1) assert_arctan2_isnzero(np.NZERO, 1)
Example #23
Source File: test_umath.py From Mastering-Elasticsearch-7.0 with MIT License | 5 votes |
def test_zero_negative(self): # atan2(+-0, x) returns +-pi for x < 0. assert_almost_equal(ncu.arctan2(np.PZERO, -1), np.pi) assert_almost_equal(ncu.arctan2(np.NZERO, -1), -np.pi)
Example #24
Source File: test_umath.py From Mastering-Elasticsearch-7.0 with MIT License | 5 votes |
def test_zero_pzero(self): # atan2(+-0, +0) returns +-0. assert_arctan2_ispzero(np.PZERO, np.PZERO) assert_arctan2_isnzero(np.NZERO, np.PZERO)
Example #25
Source File: test_umath.py From Mastering-Elasticsearch-7.0 with MIT License | 5 votes |
def test_zero_nzero(self): # atan2(+-0, -0) returns +-pi. assert_almost_equal(ncu.arctan2(np.PZERO, np.NZERO), np.pi) assert_almost_equal(ncu.arctan2(np.NZERO, np.NZERO), -np.pi)
Example #26
Source File: test_umath_complex.py From Mastering-Elasticsearch-7.0 with MIT License | 5 votes |
def test_zero(self): # carg(-0 +- 0i) returns +- pi check_real_value(ncu._arg, np.NZERO, np.PZERO, np.pi, False) check_real_value(ncu._arg, np.NZERO, np.NZERO, -np.pi, False) # carg(+0 +- 0i) returns +- 0 check_real_value(ncu._arg, np.PZERO, np.PZERO, np.PZERO) check_real_value(ncu._arg, np.PZERO, np.NZERO, np.NZERO) # carg(x +- 0i) returns +- 0 for x > 0 check_real_value(ncu._arg, 1, np.PZERO, np.PZERO, False) check_real_value(ncu._arg, 1, np.NZERO, np.NZERO, False) # carg(x +- 0i) returns +- pi for x < 0 check_real_value(ncu._arg, -1, np.PZERO, np.pi, False) check_real_value(ncu._arg, -1, np.NZERO, -np.pi, False) # carg(+- 0 + yi) returns pi/2 for y > 0 check_real_value(ncu._arg, np.PZERO, 1, 0.5 * np.pi, False) check_real_value(ncu._arg, np.NZERO, 1, 0.5 * np.pi, False) # carg(+- 0 + yi) returns -pi/2 for y < 0 check_real_value(ncu._arg, np.PZERO, -1, 0.5 * np.pi, False) check_real_value(ncu._arg, np.NZERO, -1, -0.5 * np.pi, False) #def test_branch_cuts(self): # _check_branch_cut(ncu._arg, -1, 1j, -1, 1)
Example #27
Source File: test_umath_complex.py From Mastering-Elasticsearch-7.0 with MIT License | 5 votes |
def test_simple(self): check_real_value(ncu._arg, 1, 0, 0, False) check_real_value(ncu._arg, 0, 1, 0.5*np.pi, False) check_real_value(ncu._arg, 1, 1, 0.25*np.pi, False) check_real_value(ncu._arg, np.PZERO, np.PZERO, np.PZERO) # TODO This can be xfail when the generator functions are got rid of.
Example #28
Source File: test_utils.py From Mastering-Elasticsearch-7.0 with MIT License | 5 votes |
def test_nan(self): # Test that nan is 'far' from small, tiny, inf, max and min for dt in [np.float32, np.float64]: if dt == np.float32: maxulp = 1e6 else: maxulp = 1e12 inf = np.array([np.inf]).astype(dt) nan = np.array([np.nan]).astype(dt) big = np.array([np.finfo(dt).max]) tiny = np.array([np.finfo(dt).tiny]) zero = np.array([np.PZERO]).astype(dt) nzero = np.array([np.NZERO]).astype(dt) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, inf, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, big, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, tiny, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, zero, maxulp=maxulp)) assert_raises(AssertionError, lambda: assert_array_max_ulp(nan, nzero, maxulp=maxulp))
Example #29
Source File: test_utils.py From recruit with Apache License 2.0 | 5 votes |
def test_negative_zero(self): self._test_not_equal(np.PZERO, np.NZERO)
Example #30
Source File: test_umath.py From Computable with MIT License | 5 votes |
def test_positive_zero(self): # atan2(y, +-0) returns +pi/2 for y > 0. assert_almost_equal(ncu.arctan2(1, np.PZERO), 0.5 * np.pi) assert_almost_equal(ncu.arctan2(1, np.NZERO), 0.5 * np.pi)