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Weighted random numbers
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1) calculate the sum of all the weights
2) pick a random number that is 0 or greater and is less than the sum of the weights
3) go through the items one at a time, subtracting their weight from your random number, until you get the item where the random number is less than that item's weight
Ps...
Format numbers to strings in Python
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140
Starting with Python 3.6, formatting in Python can be done using formatted string literals or f-...
How to calculate the SVG Path for an arc (of a circle)
Given a circle centered at (200,200), radius 25, how do I draw an arc from 270 degree to 135 degree and one that goes from 270 to 45 degree?
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How to empty a redis database?
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edited Oct 20 '14 at 6:45
answered Apr 22 '11 at 13:59
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How do I get user IP address in django?
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450
def get_client_ip(request):
x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
i...
printf() formatting for hex
...hy when printing hex as an 8 digit number with leading zeros, does this %#08X Not display the same result as 0x%08X ?
3 ...
Possible to make labels appear when hovering over a point in matplotlib?
...cmap = plt.cm.RdYlGn
fig,ax = plt.subplots()
sc = plt.scatter(x,y,c=c, s=100, cmap=cmap, norm=norm)
annot = ax.annotate("", xy=(0,0), xytext=(20,20),textcoords="offset points",
bbox=dict(boxstyle="round", fc="w"),
arrowprops=dict(arrowstyle="->"))
annot.s...
Best way to turn an integer into a month name in c#?
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answered Oct 20 '08 at 16:01
Nick BerardiNick Berardi
51.6k1313 gold badges108108 silver badges134134 bronze badges
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How do I create an array of strings in C?
... want to change the strings, then you could simply do
const char *a[2];
a[0] = "blah";
a[1] = "hmm";
When you do it like this you will allocate an array of two pointers to const char. These pointers will then be set to the addresses of the static strings "blah" and "hmm".
If you do want to be ab...