A programming challenge: Euler's Method; MHS CTF

The question is clear: this is a curve and we want to find Ys for provided Xs and you should use the Euler's Method; now go and write a program for it! Do you know the Euler's Method? I don't. But we have a secret tool: Internet! Lets search, learn and write.

Moral point: Do not be afraid of maths! :D ... https://www.youtube.com/watch?v=rxbo55DwMaw