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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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Common MySQL fields and their appropriate data types
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answered Dec 10 '08 at 0:57
da5idda5id
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Does pandas iterrows have performance issues?
...ateen Ulhaq
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answered Jul 21 '14 at 17:39
JeffJeff
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Is a Python list guaranteed to have its elements stay in the order they are inserted in?
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answered Dec 4 '12 at 0:11
sgesge
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Keep only first n characters in a string?
...r JavaScript's String method substring
e.g.
'Hiya how are you'.substring(0,8);
Which returns the string starting at the first character and finishing before the 9th character - i.e. 'Hiya how'.
substring documentation
s...
leading zeros in rails
...eld, if the user enters "1" I would like Rails to automatically pad it to "01" before saving it to the database. Also for the min field if the user enter "0" it should put in as "00".
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How do you convert a byte array to a hexadecimal string, and vice versa?
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1402
Either:
public static string ByteArrayToString(byte[] ba)
{
StringBuilder hex = new StringBu...
Paging UICollectionView by cells, not screen
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edited May 23 '17 at 12:03
Community♦
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answered Apr 6 '14 at 15:28
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parseInt vs unary plus, when to use which?
..., here are a few differences I know of:
An empty string "" evaluates to a 0, while parseInt evaluates it to NaN. IMO, a blank string should be a NaN.
+'' === 0; //true
isNaN(parseInt('',10)); //true
The unary + acts more like parseFloat since it also accepts decimals.
parseInt on...
Add single element to array in numpy
...mal to use the proper method for adding an element:
a = numpy.append(a, a[0])
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