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Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?

... 147 MATLAB's FOR loop is static in nature; you cannot modify the loop variable between iterations,...
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Ubuntu rails install fails on zlib

I've just moved over to Ubuntu 8.10 as my dev box; it's my first serious foray into Linux as a daily-use OS, and I'm having a hard time getting Rails going. I have followed a number of tutorials which all seem to work fine, but when I try and use gem install or gem update on anything, I get an erro...
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Why does ~True result in -2?

... int(True) is 1. 1 is: 00000001 and ~1 is: 11111110 Which is -2 in Two's complement1 1 Flip all the bits, add 1 to the resulting number and interpret the result as a binary representation of the magnitude and add a negative sign (s...
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How to calculate the angle between a line and the horizontal axis?

...xtend infinitely and don't start at a particular point). deltaY = P2_y - P1_y deltaX = P2_x - P1_x Then calculate the angle (which runs from the positive X axis at P1 to the positive Y axis at P1). angleInDegrees = arctan(deltaY / deltaX) * 180 / PI But arctan may not be ideal, because dividin...
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How to check if two arrays are equal with JavaScript? [duplicate]

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Display numbers with ordinal suffix in PHP

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Adding git branch on the Bash command prompt

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What causes imported Maven project in Eclipse to use Java 1.5 instead of Java 1.6 by default and how

I imported a Maven project and it used Java 1.5 even though I have 1.6 configured as my Eclipse default Preferences->Java->Installed JREs . ...
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Is it better to call ToList() or ToArray() in LINQ queries?

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How to change the output color of echo in Linux

... You can use these ANSI escape codes: Black 0;30 Dark Gray 1;30 Red 0;31 Light Red 1;31 Green 0;32 Light Green 1;32 Brown/Orange 0;33 Yellow 1;33 Blue 0;34 Light Blue 1;34 Purple 0;35 Light Purple 1;35 Cyan 0;...