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Why prefer two's complement over sign-and-magnitude for signed numbers?
...enting numbers, they would be 0010 and 1001, respectively (I'm sticking to 4 bits for size). In the two's complement way, they are 0010 and 1111. Now, let's say I want to add them.
Two's complement addition is very simple. You add numbers normally and any carry bit at the end is discarded. So they'...
Getting the parent of a directory in Bash
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answered Dec 8 '11 at 4:19
Michael HoffmanMichael Hoffman
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How to trim a file extension from a String in JavaScript?
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If you know the length of the extension, you can use x.slice(0, -4) (where 4 is the three characters of the extension and the dot).
If you don't know the length @John Hartsock regex would be the right approach.
If you'd rather not use regular expressions, you can try this (less performan...
How can a Java variable be different from itself?
...t equality testing is performed in accordance with the rules of the IEEE 754 standard:
If either operand is NaN, then the result of == is false but the result of != is true.
Indeed, the test x!=x is true if and only if the value of x is NaN.
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How to convert hex to rgb using Java?
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xhhxhh
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Get all unique values in a JavaScript array (remove duplicates)
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Progress indicator during pandas operations
...userID', 'requestDate']).progress_apply(feature_rollup)
Note: tqdm <= v4.8:
For versions of tqdm below 4.8, instead of tqdm.pandas() you had to do:
from tqdm import tqdm, tqdm_pandas
tqdm_pandas(tqdm())
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How to round up a number in Javascript?
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answered Mar 4 '11 at 7:56
Andrew MarshallAndrew Marshall
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Pandas selecting by label sometimes return Series, sometimes returns DataFrame
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answered Dec 4 '13 at 19:36
Dan AllanDan Allan
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How do you UrlEncode without using System.Web?
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edited Sep 18 '17 at 14:30
T.Todua
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