2017-10-04 11:00:05 +01:00
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# Tests domain errors in special math functions
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try:
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import math
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2020-03-23 02:26:08 +00:00
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2017-10-04 11:00:05 +01:00
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math.erf
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except (ImportError, AttributeError):
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print("SKIP")
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raise SystemExit
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inf = float("inf")
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nan = float("nan")
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# single argument functions
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for name, f, args in (
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("expm1", math.exp, ()),
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("log2", math.log2, (-1, 0)),
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("log10", math.log10, (-1, 0)),
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("sinh", math.sinh, ()),
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("cosh", math.cosh, ()),
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("tanh", math.tanh, ()),
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("asinh", math.asinh, ()),
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("acosh", math.acosh, (-1, 0.9, 1)),
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("atanh", math.atanh, (-1, 1)),
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("erf", math.erf, ()),
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("erfc", math.erfc, ()),
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("gamma", math.gamma, (-2, -1, 0, 1)),
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("lgamma", math.lgamma, (-2, -1, 0, 1)),
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):
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2018-09-04 08:03:37 +01:00
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for x in args + (inf, -inf, nan):
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2017-10-04 11:00:05 +01:00
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try:
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2023-02-15 23:27:10 +00:00
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ans = "%.4f" % f(x)
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2017-10-04 11:00:05 +01:00
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except ValueError:
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2023-02-15 23:27:10 +00:00
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ans = "ValueError"
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2017-10-04 11:00:05 +01:00
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except OverflowError:
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2023-02-15 23:27:10 +00:00
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ans = "OverflowError"
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print("%s(%.4f) = %s" % (name, x, ans))
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