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How can I apply a function to every row/column of a matrix in MATLAB?

You can apply a function to every item in a vector by saying, for example, v + 1 , or you can use the function arrayfun . How can I do it for every row/column of a matrix without using a for loop? ...
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Check if an array is empty or exists

When the page is loading for the first time, I need to check if there is an image in image_array and load the last image. ...
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How do Python's any and all functions work?

I'm trying to understand how the any() and all() Python built-in functions work. 8 Answers ...
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Simplest way to detect a mobile device in PHP

What is the simplest way to tell if a user is using a mobile device to browse my site using PHP? 15 Answers ...
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How to change plot background color?

I am making a scatter plot in matplotlib and need to change the background of the actual plot to black. I know how to change the face color of the plot using: ...
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Get a specific bit from byte

I have a byte, specifically one byte from a byte array which came in via UDP sent from another device. This byte stores the on/off state of 8 relays in the device. ...
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Appropriate datatype for holding percent values?

What is the best datatype for holding percent values ranging from 0.00% to 100.00%? 5 Answers ...
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Why is early return slower than else?

This is a follow-up question to an answer I gave a few days back . Edit: it seems that the OP of that question already used the code I posted to him to ask the same question , but I was unaware of it. Apologies. The answers provided are different though! ...
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Breaking out of a nested loop

If I have a for loop which is nested within another, how can I efficiently come out of both loops (inner and outer) in the quickest possible way? ...
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Accessing the index in 'for' loops?

How do I access the index in a for loop like the following? 20 Answers 20 ...