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What is “2's Complement”?
...e to think of the numbers in binary.
It basically says,
for zero, use all 0's.
for positive integers, start counting up, with a maximum of 2(number of bits - 1)-1.
for negative integers, do exactly the same thing, but switch the role of 0's and 1's (so instead of starting with 0000, start with 1111...
How to list the size of each file and directory and sort by descending size in Bash?
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answered Feb 7 '13 at 10:54
DeveloperDeveloper
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How to compare two strings in dot separated version format in Bash?
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204
Here is a pure Bash version that doesn't require any external utilities:
#!/bin/bash
vercomp (...
Create an empty list in python with certain size
... want to create an empty list (or whatever is the best way) that can hold 10 elements.
15 Answers
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Output data from all columns in a dataframe in pandas [duplicate]
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280
Use:
pandas.set_option('display.max_columns', 7)
This will force Pandas to display the 7 colu...
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
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edited Oct 7 '09 at 0:02
answered Oct 6 '09 at 23:52
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iOS Image Orientation has Strange Behavior
...camera (or taken with somebody else's camera and MMS'd to me) are rotated 90 degrees. I wasn't sure why in the world this was happening (hence my question ) but I was able to come up with a cheap work around.
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How to initialize a two-dimensional array in Python?
... \
for i in range (0, 10): \
new = [] \ can be replaced } this too
for j in range (0, 10): } with a list /
new.append(foo) / comprehension /
twod...
How to format numbers? [duplicate]
...I first wrote this answer, but the current status looks good.
var n = 100000;
var value = n.toLocaleString(
undefined, // leave undefined to use the browser's locale,
// or use a string like 'en-US' to override it.
{ minimumFractionDigits: 2 }
);
console.log(value);
// In en-US,...
Regex for string not ending with given suffix
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tckmntckmn
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