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How to convert Nonetype to int or string?
I've got an Nonetype value x , it's generally a number, but could be None . I want to divide it by a number, but Python raises:
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How to format a Java string with leading zero?
Here is the String, for example:
21 Answers
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How to get the type of a variable in MATLAB?
Does MATLAB have a function/operator that indicates the type of a variable (similar to the typeof operator in JavaScript)?
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How is a CRC32 checksum calculated?
Maybe I'm just not seeing it, but CRC32 seems either needlessly complicated, or insufficiently explained anywhere I could find on the web.
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Why is isNaN(null) == false in JS?
This code in JS gives me a popup saying "i think null is a number", which I find slightly disturbing. What am I missing?
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Android phone orientation overview including compass
I've been trying to get my head around the Android orientation sensors for a while.
I thought I understood it. Then I realised I didn't. Now I think (hope) I have a better feeling for it again but I am still not 100%. I will try and explain my patchy understanding of it and hopefully people will be ...
Group by multiple columns in dplyr, using string vector input
I'm trying to transfer my understanding of plyr into dplyr, but I can't figure out how to group by multiple columns.
9 Answ...
adding noise to a signal in python
I want to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic.
7 Answer...
What characters are valid for JavaScript variable names?
Which characters can be used for naming a JavaScript variable?
12 Answers
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Circle line-segment collision detection algorithm?
I have a line from A to B and a circle positioned at C with the radius R.
27 Answers
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