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Difference between `set`, `setq`, and `setf` in Common Lisp?
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173
Originally, in Lisp, there were no lexical variables -- only dynamic ones. And
there was no SETQ...
Numpy - add row to array
... If it is a 2D-array, how can you then compare its row to a number: i < 3?
EDIT after OP's comment:
A = array([[0, 1, 2], [0, 2, 0]])
X = array([[0, 1, 2], [1, 2, 0], [2, 1, 2], [3, 2, 0]])
add to A all rows from X where the first element < 3:
import numpy as np
A = np.vstack((A, X[X[:,0]...
Is there an equivalent for the Zip function in Clojure Core or Contrib?
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(map vector '(1 2 3) '(4 5 6))
does what you want:
=> ([1 4] [2 5] [3 6])
Haskell needs a collection of zipWith (zipWith3, zipWith4, ...) functions, because they all need to be of a specific type; in particular, the number of input lis...
Using python map and other functional tools
...ferent functions, but to access it directly from maptest:
foos = [1.0,2.0,3.0,4.0,5.0]
bars = [1,2,3]
def maptest(foo):
print foo, bars
map(maptest, foos)
With your original maptest function you could also use a lambda function in map:
map((lambda foo: maptest(foo, bars)), foos)
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Python 3.x rounding behavior
I was just re-reading What’s New In Python 3.0 and it states:
11 Answers
11
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Can I install Python 3.x and 2.x on the same Windows computer?
... run a program on the command line. Will this break if I install a 2.x and 3.x version of Python on the same machine?
20 An...
What does 'synchronized' mean?
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edited Mar 30 '18 at 7:18
Paolo Forgia
5,49477 gold badges3434 silver badges5555 bronze badges
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What is the syntax to insert one list into another list in python?
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363
Do you mean append?
>>> x = [1,2,3]
>>> y = [4,5,6]
>>> x.append(y...
How exactly does tail recursion work?
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answered Mar 20 '13 at 9:11
Alexey FrunzeAlexey Frunze
56.8k99 gold badges6767 silver badges154154 bronze badges
...