Law of cosines - triples: Difference between revisions
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m →Python ver 2: updated zipWith |
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A variant Python draft based on dictionaries. |
A variant Python draft based on dictionaries. |
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(Test functions are passed as parameters to the main function.) |
(Test functions are passed as parameters to the main function.) |
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<lang python> |
<lang python>from itertools import (starmap) |
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def f90(dct): |
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return lambda x2, ab, a, b: dct.get(x2, None) |
return lambda x2, ab, a, b: dct.get(x2, None) |
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unlines( |
unlines( |
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zipWith( |
zipWith( |
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lambda f |
lambda f, n: ( |
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lambda ks=triangles(f, 13): ( |
lambda ks=triangles(f, 13): ( |
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str(len(ks)) + ' solutions for ' + |
str(len(ks)) + ' solutions for ' + |
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# zipWith :: (a -> b -> c) -> [a] -> [b] -> [c] |
# zipWith :: (a -> b -> c) -> [a] -> [b] -> [c] |
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def zipWith(f): |
def zipWith(f): |
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return ( |
return lambda xs: lambda ys: ( |
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list(starmap(f, zip(xs, ys))) |
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[f(a)(b) for (a, b) in zip(xs, ys)] |
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) |
) |
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if __name__ == '__main__': |
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main()</lang> |
main()</lang> |
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{{Out}} |
{{Out}} |
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<pre>Triangles of maximum side 13 |
<pre>Triangles of maximum side 13 |
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