Search results

Read my blog with this tag
Follow my feed with this tag

Searching for: math

Hash saturation calculator [01358170953]
In the quest to "prove" the quality of the numbers output by my Arduino Random Number Generator, I've come across the concept of hash saturation while reading about the turbid random number generator which uses noise plus hash to give high quality random numbers. Implicitly I've relied on hash saturation all along, but now I have is a mathematical basis for this reliance.

Cancellation error [01331134959]
I was recently reminded of the importance of choosing numeric algorithms that don't behave catastrophically for certain inputs. One example is the calculation of 1-cos(θ) for small θ. In this case, cos(θ) is very close to 1, leading to a large cancellation error in the subtraction step.

Didn't find what you wanted?


Website Copyright © 2004-2018 Jeff Epler