Fast Inverse Square Root Algorithm Explained
Why we need a fast inverse square root algorithmThe inverse square root means for .
In the field of Computer Graphics, the inverse square root of a number is usually used for normalizing vectors. ...
A Short Proof Showing Why (1-x)(1+x) Is Different From (1-x^2) During Computation
When computing , we know that catastrophic cancellation may happen when we are computing the minus operation between and when we have close to 1. While this kind of cancellation may not happen w...