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how to draw smooth curve through N points using javascript HTML5 canvas?
For a drawing application, I'm saving the mouse movement coordinates to an array then drawing them with lineTo. The resulting line is not smooth. How can I produce a single curve between all the gathered points?
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Efficient way to determine number of digits in an integer
What is a very efficient way of determining how many digits there are in an integer in C++?
28 Answers
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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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How do I output text without a newline in PowerShell?
I want my PowerShell script to print something like this:
18 Answers
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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...
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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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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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...
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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Have a fixed position div that needs to scroll if content overflows
I have actually two issues, but lets resolve the primary issue first as I believe the other is easier to address.
5 Answers...