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The modulo operation on negative numbers in Python
...nually fix it up by adding 7:
int result = (2 - N) % 7;
return result < 0 ? result + 7 : result;
(See http://en.wikipedia.org/wiki/Modulo_operator for how the sign of result is determined for different languages.)
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How to determine if a point is in a 2D triangle? [closed]
... d2 = sign(pt, v2, v3);
d3 = sign(pt, v3, v1);
has_neg = (d1 < 0) || (d2 < 0) || (d3 < 0);
has_pos = (d1 > 0) || (d2 > 0) || (d3 > 0);
return !(has_neg && has_pos);
}
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How do I verify that an Android apk is signed with a release certificate?
... |
edited Jan 27 '17 at 20:05
Eugene
1,59211 gold badge1111 silver badges3131 bronze badges
answered Au...
How can I make pandas dataframe column headers all lowercase?
...
180
You can do it like this:
data.columns = map(str.lower, data.columns)
or
data.columns = [x.lo...
How do I generate random numbers in Dart?
...h:
import 'dart:math';
main() {
var rng = new Random();
for (var i = 0; i < 10; i++) {
print(rng.nextInt(100));
}
}
This code was tested with the Dart VM and dart2js, as of the time of this writing.
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CSS filter: make color image with transparency white
...
You can use
filter: brightness(0) invert(1);
html {
background: red;
}
p {
float: left;
max-width: 50%;
text-align: center;
}
img {
display: block;
max-width: 100%;
}
.filter {
-webkit-filter: brightness(0) invert(1);
fi...
What is a regular expression for a MAC Address?
...
The standard (IEEE 802) format for
printing MAC-48 addresses in
human-friendly form is six groups of
two hexadecimal digits, separated by
hyphens - or colons :.
So:
^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$
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What is :: (double colon) in Python when subscripting sequences?
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10 Answers
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Remote Connections Mysql Ubuntu
...ss
bind-address = xxx.xxx.xxx.xxx
Or add a
bind-address = 0.0.0.0 if you don't want to specify the IP
Then stop and restart MySQL with the new my.cnf entry. Once running go to the terminal and enter the following command.
lsof -i -P | grep :3306
That should come back something l...
What is the difference between NULL, '\0' and 0?
...ear to be differences between various values of zero -- NULL , NUL and 0 .
11 Answers
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