This is a very simple program that approximates π, ɸ, e, √2, and √-1, if you want it to be more accurate for certain numbers then go into the code and make it repeat more times or choose a bigger Fibonacci number (and by that I mean the index of one, for example, the first one, the second one, the third one) or pick a bigger value for n, (the code is so simple I'm sure you'll figure it out by looking at the code).
