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In pure functional languages, is there an algorithm to get the inverse function?
...a)
composeBi :: Bi a b -> Bi b c -> Bi a c
composeBi (Bi a1 i1) (Bi a2 i2) = Bi (a2 . a1) (i1 . i2)
mapBi :: Bi a b -> Bi [a] [b]
mapBi (Bi a i) = Bi (map a) (map i)
bruteForceBi :: Eq b => [a] -> (a -> b) -> Bi a b
bruteForceBi domain f = Bi f (inv domain f)
I think you co...
Python string class like StringBuilder in C#?
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answered Mar 10 '10 at 5:11
Andrew HareAndrew Hare
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What are the differences between double-dot “..” and triple-dot “…” in Git diff commit ranges?
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The top picture is equivalent to the bottom graph tree
A0 <- A1 <- A2 <- A3 (master)
\
C0 <- C1 (test)
A picture is worth a thousand words, the difference between .. ... ^ is shown below.
$ git log master..test
# output C0 C1
$ git log ^master test
# output C0 C1
$ git log ...
How can I round a number in JavaScript? .toFixed() returns a string?
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11 Answers
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Android emulator and virtualbox cannot run at same time
...VirtualBox conflict.
Solved it by using ABI different from "x86" (armeabi-v7a in my case)
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Repeat each row of data.frame the number of times specified in a column
...en(nrow(df)).
– Marek
May 25 '10 at 11:54
This worked fantastically for a big data frame -- 1.5million rows, 5 cols, w...
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GauthierGauthier
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How to namespace Twitter Bootstrap so styles don't conflict
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Community♦
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answered Dec 20 '12 at 17:14
AndrewAndrew
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Python Flask, how to set content type
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Harsh DaftaryHarsh Daftary
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How to change a module variable from another module?
...ginal bar.py:a object (None). This is why you can do from bar import a as a2 in __init__.py: in this case, it is clear that you have both bar/bar.py:a and a distinct variable name bar/__init__.py:a2 (in your case, the names of the two variables just happen to both be a, but they still live in diffe...