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test_math_02.py
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test_math_02.py
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from math import (sin, cos, tan, pi, sqrt, log, log10, log2, erf, erfc, gamma,
lgamma, asin, acos, atan, atan2, asinh, acosh, atanh,
tanh, sinh, cosh, hypot, copysign)
def test_trig():
eps: f64 = 1e-12
assert abs(sin(0.0)-0) < eps
assert abs(sin(pi/2)-1) < eps
assert abs(cos(0.0)-1) < eps
assert abs(cos(pi/2)-0) < eps
assert abs(tan(0.0)-0) < eps
assert abs(tan(pi/4)-1) < eps
assert abs(asin(1.0) - pi/2) < eps
assert abs(acos(1.0) - 0) < eps
assert abs(atan(1.0) - pi/4) < eps
assert abs(atan2(1.0, 1.0) - pi/4) < eps
def test_sqrt():
eps: f64 = 1e-12
assert abs(sqrt(2.0) - 1.4142135623730951) < eps
assert abs(sqrt(9.0) - 3) < eps
def test_log():
eps: f64 = 1e-12
assert abs(log(1.0) - 0) < eps
assert abs(log(2.718281828459) - 1) < eps
assert abs(log2(2.0) - 1) < eps
assert abs(log10(10.0) - 1) < eps
def test_special():
eps: f64 = 1e-12
assert abs(erf(2.0) - 0.9953222650189527) < eps
assert abs(erfc(2.0) - 0.0046777349810472645) < eps
assert abs(erf(2.0) + erfc(2.0) - 1) < eps
assert abs(gamma(5.0) - 24) < eps
assert abs(lgamma(5.0) - log(gamma(5.0))) < eps
def test_hyperbolic():
eps: f64 = 1e-12
assert abs(sinh(1.0) - 1.1752011936438014) < eps
assert abs(cosh(1.0) - 1.5430806348152437) < eps
assert abs(tanh(1.0) - 0.7615941559557649) < eps
assert abs(asinh(1.0) - 0.881373587019543) < eps
def test_copysign():
eps: f64 = 1e-12
assert abs(copysign(-8.56, 97.21) - 8.56) < eps
assert abs(copysign(-43.0, -76.67) - (-43.0)) < eps
def test_hypot():
eps: f64 = 1e-12
assert abs(hypot(3, 4) - 5.0) < eps
assert abs(hypot(-3, 4) - 5.0) < eps
assert abs(hypot(6, 6) - 8.48528137423857) < eps
def check():
test_trig()
test_sqrt()
test_log()
test_special()
test_hyperbolic()
test_copysign()
test_hypot()
check()