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How to use the PI constant in C++
...th.h>
and the value of pi can be accessed via:
M_PI
In my math.h (2014) it is defined as:
# define M_PI 3.14159265358979323846 /* pi */
but check your math.h for more. An extract from the "old" math.h (in 2009):
/* Define _USE_MATH_DEFINES before including math.h to expose th...
Run cron job only if it isn't already running
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rsandenrsanden
1,1011313 silver badges1818 bronze badges
3
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How to change the remote a branch is tracking?
...w origin, but I hadn't fetched info about it.
– racl101
Jan 25 '17 at 5:04
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Redis: Show database size/size for keys
.../…
– Hugo Tavares
Jul 5 '15 at 17:01
there doesn't seem to be a way to get the size of the key or value or key-value...
Linux command to list all available commands and aliases
...str.
– Toby Speight
Jul 20 '17 at 9:01
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How can I get the concatenation of two lists in Python without modifying either one? [duplicate]
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edited Mar 10 at 13:01
phoenix
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answered Dec...
Styling HTML email for Gmail
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The answers here are outdated, as of today Sep 30 2016. Gmail is currently rolling out support for the style tag in the head, as well as media queries. If Gmail is your only concern, you're safe to use classes like a modern developer!
For reference, you can check the offici...
Nodemailer with Gmail and NodeJS
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edited Oct 24 '18 at 11:01
Lewis Browne
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answered Oct 24 '18 at 9...
Is it possible to program iPhone in C++
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Janus Troelsen
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answered Nov 6 '08 at 21:55
Robert S.Robert S...
Submitting a form by pressing enter without a submit button
...9px;
– Bryan Downing
Nov 3 '10 at 1:01
84
What a horrible hack :( why is HTML like this in the fi...