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Append integer to beginning of list in Python [duplicate]
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833
>>>var=7
>>>array = [1,2,3,4,5,6]
>>>array.insert(0,var)
>>>...
namedtuple and default values for optional keyword arguments
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553
Python 3.7
Use the defaults parameter.
>>> from collections import namedtuple
>>...
How do Trigonometric functions work?
...ndard interval. For starters, you could reduce angles to be between 0 and 360 degrees. But by using a few identities, you realize you could get by with less. If you calculate sines and cosines for angles between 0 and 45 degrees, you can bootstrap your way to calculating all trig functions for all...
Maven project version inheritance - do I have to specify the parent version?
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EDIT: Since Maven 3.5.0 there is a nice solution for this using ${revision} placeholder. See FrVaBe's answer for details. For previous Maven versions see my original answer below.
No, there isn't. You always have to specify parent's version...
How to define a two-dimensional array?
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1039
You're technically trying to index an uninitialized array. You have to first initialize the out...
How does `is_base_of` work?
...ted to D* and B*. It's a user defined conversion sequence as described by 13.3.3.1.2 from Host<B, D> to D* and B* respectively. For finding conversion functions that can convert the class, the following candidate functions are synthesized for the first check function according to 13.3.1.5/1
D...
How to install Maven 3 on Ubuntu 18.04/17.04/16.10/16.04 LTS/15.10/15.04/14.10/14.04 LTS/13.10/13.04
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APerson
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answered May 15 '13 at 13:25
miskemiske
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Why do we check up to the square root of a prime number to determine if it is prime?
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13 Answers
13
Active
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Data structure for loaded dice?
...t time) with a one-time O(n) set-up. You can find it documented in chapter 3 (PDF) of "Non-Uniform Random Variate Generation" by Luc Devroye.
The idea is to take your array of probabilities pk and produce three new n-element arrays, qk, ak, and bk. Each qk is a probability between 0 and 1, and each...
Definition of a Balanced Tree
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edited Feb 5 '13 at 16:50
answered Feb 5 '13 at 16:30
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