def test_sign(self):
from _numpypy import array, sign, dtype
reference = [-1.0, 0.0, 0.0, 1.0]
a = array([-5.0, -0.0, 0.0, 6.0])
b = sign(a)
for i in range(4):
assert b[i] == reference[i]
a = sign(array(range(-5, 5)))
ref = [-1, -1, -1, -1, -1, 0, 1, 1, 1, 1]
for i in range(10):
assert a[i] == ref[i]
a = sign(array([True, False], dtype=bool))
assert a.dtype == dtype("int8")
assert a[0] == 1
assert a[1] == 0
def test_sign(self):
from _numpypy import array, sign, dtype
reference = [-1.0, 0.0, 0.0, 1.0]
a = array([-5.0, -0.0, 0.0, 6.0])
b = sign(a)
for i in range(4):
assert b[i] == reference[i]
a = sign(array(range(-5, 5)))
ref = [-1, -1, -1, -1, -1, 0, 1, 1, 1, 1]
for i in range(10):
assert a[i] == ref[i]
a = sign(array([True, False], dtype=bool))
assert a.dtype == dtype("int8")
assert a[0] == 1
assert a[1] == 0
def test_single_item(self):
from _numpypy import negative, sign, minimum
assert negative(5.0) == -5.0
assert sign(-0.0) == 0.0
assert minimum(2.0, 3.0) == 2.0
def test_single_item(self):
from _numpypy import negative, sign, minimum
assert negative(5.0) == -5.0
assert sign(-0.0) == 0.0
assert minimum(2.0, 3.0) == 2.0
