hashbangcode, New! Drawing A Parabolic Curve With Straight Lines In PHP
https://www.hashbangcode.com/article/drawing-parabolic-curve-straight-lines-php
A parabolic curve is a type of curve where every point is an equal distance from a focal point. There a number of different way to generate this sort of curve using maths, but one of the simplest is to use straight lines to create the illusion of the curve.