Tim Peters <[email protected]> added the comment:
Mark's analysis is spot-on - good eye :-)
Here under 3.7.3 [MSC v.1916 64 bit (AMD64)] on win32, in the original script
it makes no difference at all for negative "small x" (where, as Mark said, `1 -
random.random()` is exactly representable):
Counter({'equal': 50058, 'offset_log': 41936, 'regular_log': 8006})
Counter({'equal': 100000})
Changing to Mark's 1e-3 * random.random():
Counter({'offset_log': 99958, 'equal': 42})
Counter({'offset_log': 99884, 'equal': 116})
And going on to use 1e-6 instead:
Counter({'offset_log': 100000})
Counter({'offset_log': 100000})
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<https://bugs.python.org/issue37454>
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