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List of lists changes reflected across sublists unexpectedly
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When you write [x]*3 you get, essentially, the list [x, x, x]. That is, a list with 3 referenc...
What is the difference between ~> and >= when specifying rubygem in Gemfile?
...sion provided and use that until it reaches a maximum version. So ~>0.8.5 is semantically equivalent to:
gem "cucumber", ">=0.8.5", "<0.9.0"
The easy way to think about it is that you're okay with the last digit incrementing to some arbitrary value, but the ones preceding it in the string...
Shuffle two list at once with same order
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answered Apr 25 '14 at 9:45
sshashank124sshashank124
26.6k77 gold badges5353 silver badges6666 bronze badges
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What is the bower (and npm) version syntax?
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5 Answers
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How to form tuple column from two columns in Pandas
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edited Nov 7 '16 at 16:58
answered Apr 17 '13 at 19:24
D...
Why modelVersion of pom.xml is necessary and always set to 4.0.0?
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edited May 22 at 18:54
Dinei
2,16222 gold badges2323 silver badges4646 bronze badges
answered Nov ...
How to add a new row to an empty numpy array
...append(arr, np.array([[1,2,3]]), axis=0)
arr = np.append(arr, np.array([[4,5,6]]), axis=0)
But, @jonrsharpe is right. In fact, if you're going to be appending in a loop, it would be much faster to append to a list as in your first example, then convert to a numpy array at the end, since you're re...
No provider for “framework:jasmine”! (Resolving: framework:jasmine)
..."~0.7.0",
"grunt-concurrent": "~0.4.1",
"grunt-contrib-clean": "~0.5.0",
"grunt-contrib-coffee": "~0.7.0",
"grunt-contrib-compass": "~0.6.0",
"grunt-contrib-concat": "~0.3.0",
"grunt-contrib-connect": "~0.5.0",
"grunt-contrib-copy": "~0.4.1",
"grunt-contrib-cssmin": "...
What is Weak Head Normal Form?
...are often caused by this kind of usage of foldl:
foldl (+) 0 [1, 2, 3, 4, 5, 6]
= foldl (+) (0 + 1) [2, 3, 4, 5, 6]
= foldl (+) ((0 + 1) + 2) [3, 4, 5, 6]
= foldl (+) (((0 + 1) + 2) + 3) [4, 5, 6]
= foldl (+) ((((0 + 1) + 2) + 3) + 4) [5, 6]
= foldl (+) (((((0 + 1) + 2) + 3) + 4) + 5) [6]
= f...
Obfuscated C Code Contest 2006. Please explain sykes2.c
... (i/64)];. i/64 is the line number (6 to 0) and i*2&8 is 8 iff i is 4, 5, 6 or 7 mod 8.
if((i & 2) == 0) shift /= 8; shift = shift % 8 selects either the high octal digit (for i%8 = 0,1,4,5) or the low octal digit (for i%8 = 2,3,6,7) of the table value. The shift table ends up looking like ...