A monte carlo simulation written in go that attempts to estimate Pi. Inspired by this excellent blog post. I'm using Ebitengine to show the algorithm work visually. When you go run main.go you will see something like this:
As you can see, this run achieved a result of 3.140872, which is off by only 0.000721. Due to the nature of monte carlo simulations, different runs will give you different results but I was consistently estimating Pi pretty accurately. Play with the constants at the top (make sure to keep width/height proportionate if you change them) and try running the test again.