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Control the size of points in an R scatterplot?
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What integer hash function are good that accepts an integer hash key?
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Knuth's multiplicative method:
hash(i)=i*2654435761 mod 2^32
In general, you should pick a multiplier that is in the order of your hash size (2^32 in the example) and has no common factors with it. This way the hash function covers all your hash space uniformly.
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How to detect READ_COMMITTED_SNAPSHOT is enabled?
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What does curly brackets in the `var { … } = …` statements do?
...ith Python, it's similar to this syntax:
>>> a, (b, c) = (1, (2, 3))
>>> a, b, c
(1, 2, 3)
The first code chunk is shorthand for:
var {Hotkey: Hotkey} = require("sdk/hotkeys");
// Or
var Hotkey = require("sdk/hotkeys").Hotkey;
You can rewrite the second code chunk as:
let Cc...
How to use mysql JOIN without ON condition?
... with three rows ('a', 'b', and 'c') and a table with four rows (say 1, 2, 3, 4) would have 12 rows.
In practice, if you want to do a cross join, then use cross join:
from A cross join B
is much better than:
from A, B
and:
from A join B -- with no on clause
The on clause is required for a ...
Where are an UIWebView's cookies stored?
...x Reynolds
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How do I specify different Layouts in the ASP.NET MVC 3 razor ViewStart file?
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Grep for literal strings
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138
You can use grep for that, with the -F option.
-F, --fixed-strings PATTERN is a set of n...
Not class selector in jQuery
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answered Jan 6 '11 at 10:53
lonesomedaylonesomeday
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In Python, how do you convert seconds since epoch to a `datetime` object?
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answered Sep 12 '10 at 10:33
SilentGhostSilentGhost
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