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Issue #3366: Add expm1 function to math module. Thanks Eric Smith for

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testing on Windows.
This commit is contained in:
Mark Dickinson 2009-12-16 20:13:40 +00:00
parent 98e3df38fd
commit 9cae178f21
13 changed files with 162 additions and 10 deletions
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13
Lib/test/test_math.py
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@ -987,17 +987,16 @@ class MathTests(unittest.TestCase):
if math.isnan(expected) and math.isnan(got):
continue
if not math.isnan(expected) and not math.isnan(got):
# we use different closeness criteria for
# different functions.
if fn == 'gamma':
accuracy_failure = ulps_check(expected, got, 20)
elif fn == 'lgamma':
if fn == 'lgamma':
# we use a weaker accuracy test for lgamma;
# lgamma only achieves an absolute error of
# a few multiples of the machine accuracy, in
# general.
accuracy_failure = acc_check(expected, got,
rel_err = 5e-15,
abs_err = 5e-15)
else:
raise ValueError("don't know how to check accuracy "
"for this function")
accuracy_failure = ulps_check(expected, got, 20)
if accuracy_failure is None:
continue