This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Extreme points illustration. en Maksim page en Extreme points svg Created with MATLAB Source code in MATLAB function main clf hold on axis equal axis off prepare the screen linewidth sqrt height initialize variables white red lightblue sqrt length corner height for corner height end corner height fill real