The main code algorithm is not mine. It belongs to nokko, taken from this post. I just took it and edited to fit Casio's MicroPython. First, load the script from your calculator's Python section. You ...
Python program for Casio fx-9750GIII (and fx-9860GIII, and probably others that I can't test) to complete the square for standard quadratic expressions. This repo is pretty much a few of the programs ...