COUNT = 2000000 # Change this value depending on the speed of your computer
DATA = list(islice(iter(lambda: (random() - 0.5)*3.0, None), COUNT))
e = 2.7182818284590452353602874713527
def sinh(x):
return (1 - (e ** (-2 * x))) / (2 * (e ** -x))
def cosh(x):
return (1 + (e ** (-2 * x))) / (2 * (e ** -x))
def tanh(x):
tanh_x = sinh(x) / cosh(x)
return tanh_x
def test(fn, name):
start = perf_counter()
result = fn(DATA)
duration = perf_counter() - start
print('{} took {:.3f} seconds\n\n'.format(name, duration))
for d in result:
assert -1 <= d <= 1, " incorrect values"
if __name__ == "__main__":
print('Running benchmarks with COUNT = {}'.format(COUNT))
test(lambda d: [tanh(x) for x in d], '[tanh(x) for x in d] (Python implementation)')
test(lambda d: [fast_tanh(x) for x in d], '[fast_tanh(x) for x in d] (CPython C++ extension)')
test(lambda d: [fast_tanh2(x) for x in d], '[fast_tanh2(x) for x in d] (PyBind11 C++ extension)')
return (1 + (e**(-2 * x))) / (2 * (e**-x))
def tanh(x):
tanh_x = sinh(x) / cosh(x)
return tanh_x
def test(fn, name):
start = perf_counter()
result = fn(DATA)
duration = perf_counter() - start
print('{} took {:.3f} seconds\n\n'.format(name, duration))
for d in result:
assert -1 <= d <= 1, " incorrect values"
if __name__ == "__main__":
print('Running benchmarks with COUNT = {}'.format(COUNT))
test(lambda d: [tanh(x) for x in d],
'[tanh(x) for x in d] (Python implementation)')
from superfastcode import fast_tanh
test(lambda d: [fast_tanh(x) for x in d],
'[fast_tanh(x) for x in d] (CPython C++ extension)')
from superfastcode2 import fast_tanh2
test(lambda d: [fast_tanh2(x) for x in d],
'[fast_tanh2(x) for x in d] (PyBind11 C++ extension)')
COUNT = 500000 # Change this value depending on the speed of your computer
DATA = list(islice(iter(lambda: (random() - 0.5) * 3.0, None), COUNT))
e = 2.7182818284590452353602874713527
def sinh(x):
return (1 - (e ** (-2 * x))) / (2 * (e ** -x))
def cosh(x):
return (1 + (e ** (-2 * x))) / (2 * (e ** -x))
def tanh(x):
tanh_x = sinh(x) / cosh(x)
return tanh_x
def test(fn, name):
start = perf_counter()
result = fn(DATA)
duration = perf_counter() - start
print('{} took {:.3f} seconds\n\n'.format(name, duration))
for d in result:
assert -1 <= d <= 1, " incorrect values"
if __name__ == "__main__":
print('Running benchmarks with COUNT = {}'.format(COUNT))
test(lambda d: [tanh(x) for x in d], '[tanh(x) for x in d] (Python implementation)')
test(lambda d: [fast_tanh(x) for x in d], '[fast_tanh(x) for x in d] (Pybind11 C++ extension)')
DATA = list(islice(iter(lambda: (random() - 0.5) * 3.0, None), COUNT))
e = 2.7182818284590452353602874713527
def sinh(x):
return (1 - (e ** (-2 * x))) / (2 * (e ** -x))
def cosh(x):
return (1 + (e ** (-2 * x))) / (2 * (e ** -x))
def tanh(x):
tanh_x = sinh(x) / cosh(x)
return tanh_x
def test(fn, name):
start = perf_counter()
result = fn(DATA)
duration = perf_counter() - start
print('{} took {:.3f} seconds\n\n'.format(name, duration))
for d in result:
assert -1 <= d <= 1, " incorrect values"
if __name__ == "__main__":
print('Running benchmarks with COUNT = {}'.format(COUNT))
test(lambda d: [tanh(x) for x in d], '[tanh(x) for x in d] (Python implementation)')
test(lambda d: [fast_tanh(x) for x in d], '[fast_tanh(x) for x in d] (C++ implementation)')
def sinh(x):
return (1 - (e**(-2 * x))) / (2 * (e**-x))
def cosh(x):
return (1 + (e**(-2 * x))) / (2 * (e**-x))
def tanh(x):
tanh_x = sinh(x) / cosh(x)
return tanh_x
from superfastcode import fast_tanh
print(fast_tanh(0))
#test(lambda d: [fast_tanh(x) for x in d], '[fast_tanh(x) for x in d] (CPython C++ extension)')
def test(fn, name):
start = perf_counter()
result = fn(DATA)
duration = perf_counter() - start
print('{} took {:.3f} seconds\n\n'.format(name, duration))
for d in result:
assert -1 <= d <= 1, " incorrect values"
if __name__ == "__main__":
test(lambda d: [tanh(x) for x in d],