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Which is faster in Python: x**.5 or math.sqrt(x)?
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math.sqrt(x) is significantly faster than x**0.5.
import math
N = 1000000
%%timeit
for i in range(N):
z=i**.5
10 loops, best of 3: 156 ms per loop
%%timeit
for i in range(N):
z=math.sqrt(i)
10 loops, best of 3: 91.1 ms per loop
Using Python 3.6.9 ...
How to sort a list in Scala by two fields?
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answered Apr 5 '12 at 11:25
seniasenia
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Which is better, number(x) or parseFloat(x)?
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All falsey values in JavaScript
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answered Nov 7 '13 at 15:34
user56reinstatemonica8user56reinstatemonica8
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List All Redis Databases
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answered Oct 9 '12 at 17:35
Didier SpeziaDidier Spezia
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Zero-pad digits in string
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Gras Double
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answered Nov 27 '08 at 17:59
Konrad RudolphKonrad Rudolph
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Java regex capturing groups indexes
...e opening parentheses of the capturing groups. As an example, here are all 5 capturing groups in the below pattern:
(group)(?:non-capturing-group)(g(?:ro|u)p( (nested)inside)(another)group)(?=assertion)
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1-----1 ...
How would I get a cron job to run every 30 minutes?
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edited Sep 27 '11 at 13:45
Tim Cooper
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answ...
Remove duplicated rows using dplyr
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edited Jun 19 '18 at 12:57
Axeman
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answered Apr...