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Circle line-segment collision detection algorithm?
...to the line AB, and the second division by LAB is to normalize it into the range 0..1. Also the dt needs to be divided by LAB so it is also normalized. Thus "if (t-dt >=0.0)" first intersection exists "if (t+dt <= 1.0)" second intersection exists. This worked with testing.
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Is 'switch' faster than 'if'?
...hooses. Good point re jumping past switch :-). Code size depends on cases/range - could be better. Finally, some enums, bit fields and char scenarios are inherently valid/bounded & overhead free.
– Tony Delroy
Jul 25 '14 at 6:00
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How to set limits for axes in ggplot2 R plots?
...-5000, 5000))
Where the first removes all data points outside the given range and the second only adjusts the visible area. In most cases you would not see the difference, but if you fit anything to the data it would probably change the fitted values.
You can also use the shorthand function xlim...
Using Python String Formatting with Lists
...@neobot's answer but a little more modern and succinct.
>>> l = range(5)
>>> " & ".join(["{}"]*len(l)).format(*l)
'0 & 1 & 2 & 3 & 4'
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What's the function like sum() but for multiplication? product()?
...iterable):
return reduce(operator.mul, iterable, 1)
>>> prod(range(1, 5))
24
Note, in Python 3, the reduce() function was moved to the functools module.
Specific case: Factorials
As a side note, the primary motivating use case for prod() is to compute factorials. We already have supp...
Java 8 stream reverse order
...erating a reverse IntStream, try something like this:
static IntStream revRange(int from, int to) {
return IntStream.range(from, to)
.map(i -> to - i + from - 1);
}
This avoids boxing and sorting.
For the general question of how to reverse a stream of any type, I don't...
cartesian product in pandas
...x[:] = 0
df_cartesian = df1.join(df2, how='outer')
df_cartesian.index[:] = range(len(df_cartesian))
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Hidden Features of C#? [closed]
...h. If you had a set on there and set the value to null, it would be very strange for someone using your API.
– Ian
Oct 7 '09 at 8:16
8
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PostgreSQL - max number of parameters in “IN” clause?
...esql jdbc driver:
Caused by: java.io.IOException: Tried to send an out-of-range integer as a 2-byte value: 100000
at org.postgresql.core.PGStream.SendInteger2(PGStream.java:201)
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Is there a function in python to split a word into a list? [duplicate]
...rator expression is just pointless wrapping.
– ShadowRanger
Jun 21 '16 at 23:30
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