Reverse iteration root-finding
( go to the article → https://www.johndcook.com/blog/2021/01/17/reverse-iteration-root-finding/ )
The sinc function is defined by sinc(x) = sin(x)/x. This function comes up constantly in signal processing. Here’s a plot. We would like to find the location of the function’s peaks. Let’s focus first on the first positive peak, the one that’s somewhere between 5 and 10. Once we can find that one, the rest […] The post Reverse iteration root-finding first appeared on John D. Cook.
Jan. 18, 2021, 2:26 a.m.