micropython/tests/float/math_fun_special.py

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# test the special functions imported from math
try:
from math import *
erf
except (ImportError, NameError):
print("SKIP")
import sys
sys.exit()
test_values = [-8., -2.5, -1, -0.5, 0.0, 0.5, 2.5, 8.,]
pos_test_values = [0.001, 0.1, 0.5, 1.0, 1.5, 10.,]
functions = [
('expm1', expm1, test_values),
('log2', log2, test_values),
('log10', log10, test_values),
('cosh', cosh, test_values),
('sinh', sinh, test_values),
('tanh', tanh, test_values),
('acosh', acosh, [1.0, 5.0, 1.0]),
('asinh', asinh, test_values),
('atanh', atanh, [-0.99, -0.5, 0.0, 0.5, 0.99]),
('erf', erf, test_values),
('erfc', erfc, test_values),
('gamma', gamma, pos_test_values),
('lgamma', lgamma, pos_test_values + [50., 100.,]),
]
for function_name, function, test_vals in functions:
print(function_name)
for value in test_vals:
try:
print("{:.4g}".format(function(value)))
except ValueError as e:
print(str(e))