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How to convert floats to human-readable fractions?
...;>> Fraction.from_float(cos(pi/3))
Fraction(4503599627370497, 9007199254740992)
>>> Fraction.from_float(cos(pi/3)).limit_denominator()
Fraction(1, 2)
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How to convert char to int?
...ber?
– Joel Mueller
Sep 8 '10 at 16:25
49
There are many Unicode characters that do represent a n...
Algorithm to detect corners of paper sheet in photo
...se constants are carefully picked
MORPH = 9
CANNY = 84
HOUGH = 25
img = cv2.cvtColor(orig, cv2.COLOR_BGR2GRAY)
cv2.GaussianBlur(img, (3,3), 0, img)
# this is to recognize white on white
kernel = cv2.getStructuringElement(cv2.MORPH_RECT,(MORPH,MORPH))
dilated = cv2....
Passing parameters to a Bash function
...
codeforester
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answered Jun 2 '11 at 8:57
dogbanedogbane
...
How do I set up email confirmation with Devise?
...g.action_mailer.smtp_settings = {:address => "localhost", :port => 1025}
5. For production environment in /config/environments/production.rb you may use something similar to the following (supposing you have a SMTP server on localhost:25):
config.action_mailer.default_url_options = {:host =...
How do I get the fragment identifier (value after hash #) from a URL?
...
answered Jan 29 '16 at 7:25
JoyGuruJoyGuru
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...
Rename Files and Directories (Add Prefix)
...
225
Thanks to Peter van der Heijden, here's one that'll work for filenames with spaces in them:
fo...
Media Queries: How to target desktop, tablet, and mobile?
...let, landscape iPad, lo-res laptops ands desktops */ }
@media (min-width:1025px) { /* big landscape tablets, laptops, and desktops */ }
@media (min-width:1281px) { /* hi-res laptops and desktops */ }
Edit: Refined to work better with 960 grids:
@media (min-width:320px) { /* smartphones, iPhone, po...
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is no
...me.
– Maarten Kieft
Jan 29 '15 at 8:25
15
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How to change the color of an svg element?
...="new 0 0 512 512" xml:space="preserve">
<path id="time-3-icon" d="M256,50C142.229,50,50,142.229,50,256c0,113.77,92.229,206,206,206c113.77,0,206-92.23,206-206
C462,142.229,369.77,50,256,50z M256,417c-88.977,0-161-72.008-161-161c0-88.979,72.008-161,161-161c88.977,0,161,72.007,161,161
C417,...