Ethiopian multiplication: Difference between revisions
Content added Content deleted
(→{{header|Python}}: Use takewhile) |
m (→{{header|Python}}: -r -> -s) |
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arg = function(arg) |
arg = function(arg) |
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halves = lambda x: takewhile(lambda v: v >= 1, iterate(halve, x)) |
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doubles = lambda x: iterate(double, x) |
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def ethiopian(multiplier, multiplicand): |
def ethiopian(multiplier, multiplicand): |
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table = [(p, q) for p, q in |
table = [(p, q) for p, q in |
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izip( |
izip(halves(multiplier), doubles(multiplicand))] |
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result = sum(q for p, q in table if not even(p)) |
result = sum(q for p, q in table if not even(p)) |
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return result</lang> |
return result</lang> |
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