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Way to get all alphabetic chars in an array in PHP?
...st do $array[] = chr($i) to append an element
– Tom Haigh
Jan 10 '09 at 23:21
That's essentially what range does but t...
How to calculate cumulative normal distribution?
...ds people here, I decide to write my solution here.
That is, since Python 2.7, the math library has integrated the error function math.erf(x)
The erf() function can be used to compute traditional statistical functions such as the cumulative standard normal distribution:
from math import *
def phi...
Comparing two files in linux terminal
...) <(sort b.txt)
# ~0.2s
diff a.txt b.txt
# ~2.6s
sdiff a.txt b.txt
# ~2.7s
vimdiff a.txt b.txt
# ~3.2s
comm seems to be the fastest by far, while git diff --no-index appears to be the fastest approach for diff-style output.
Update 2018-03-25 You can actually omit the --no-index flag unles...
List of installed gems?
...uery --local
http://guides.rubygems.org/command-reference/#gem-list
See 2.7 Listing all installed gems
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Cannot install Lxml on Mac os x 10.9
... I'm on the El Capitan beta (so that's 10.11) and using Python 2.7 for this. I'm guessing it might have something to do with El Capitan...
– PLPeeters
Sep 14 '15 at 11:48
...
Python 3: ImportError “No Module named Setuptools”
...
EDIT: Official setuptools dox page:
If you have Python 2 >=2.7.9 or Python 3 >=3.4 installed from
python.org, you will already have pip and setuptools, but will need to
upgrade to the latest version:
On Linux or OS X:
pip install -U pip setuptools
On Windows:
pyt...
How can I create a simple message box in Python?
...nager. So I installed python-tk using my package manager. I'm using Python 2.7 on Debian.
– shitpoet
Jan 10 '19 at 13:20
...
Python's time.clock() vs. time.time() accuracy?
... to use time.process_time() or time.perf_counter() instead.
Previously in 2.7, according to the time module docs:
time.clock()
On Unix, return the current processor time as a floating point number
expressed in seconds. The precision, and in fact the very definition
of the meaning of ...
Java Date cut off time information
...
With Joda you can easily get the expected date.
As of version 2.7 (maybe since some previous version greater than 2.2), as a commenter notes, toDateMidnight has been deprecated in favor or the aptly named withTimeAtStartOfDay(), making the convenient
DateTime.now().withTimeAtStartOfDay...
How do I pause my shell script for a second before continuing?
I have only found how to wait for user input. However, I only want to pause so that my while true doesn't crash my computer.
...