What’s the difference between “mod” and “remainder”?
My friend said that there are differences between “mod” and “remainder”. If so, what are those differences in C and C++? Does ‘%’ … Read more
math
What does gcc’s ffast-math actually do?
I understand gcc’s –ffast-math flag can greatly increase speed for float ops, and goes outside of IEEE standards, but I can’t seem to … Read more
Algorithm to find Largest prime factor of a number
What is the best approach to calculating the largest prime factor of a number? I’m thinking the most efficient would be the following: … Read more
How to test if a double is an integer
Is it possible to do this? double variable; variable = 5; /* the below should return true, since 5 is an int. if … Read more
numpy max vs amax vs maximum
numpy has three different functions which seem like they can be used for the same things — except that numpy.maximum can only be … Read more
What are the mathematical/computational principles behind this game?
My kids have this fun game called Spot It! The game constraints (as best I can describe) are: It is a deck of … Read more
How does the HyperLogLog algorithm work?
I’ve been learning about different algorithms in my spare time recently, and one that I came across which appears to be very interesting … Read more
How do I calculate the normal vector of a line segment? [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question does not appear to be about … Read more
Why use softmax as opposed to standard normalization?
In the output layer of a neural network, it is typical to use the softmax function to approximate a probability distribution: This is … Read more
How can I specify the base for Math.log() in JavaScript?
I need a log function for JavaScript, but it needs to be base 10. I can’t see any listing for this, so I’m … Read more