Pi (π) is a very special number: it has infinite decimals, and no pattern can be applied to them. Therefore, it is impossible to exactly calculate it, but it can be estimated. This is what this project does: it uses the combinated power of all the people who use their computers to estimate the value of pi (with some help from Scratch's random number generator). HOW DOES THIS PROJECT WORK? This project works using the Montecarlo method of approximation to pi. In the method, a point is selected randomly inside the x and y coordinates ranging from -1 to 1. Then, using the equation x^2 + y^2 <= 1 (which corresponds to a circle with radius 1) it determines if it would be inside a circle with radius 1 and its center at (0,0). Using a formula that can be easily found from the areas of the square and the circle, it concludes that the number of points inside the circle divided by the total number of points multiplied by 4 is equal to pi. And finally, it combines those results with the ones other people already contributed (stored in two cloud variables). NOTE: Scratch's random numbers are not actually random, but pseudorandom (more info in https://scratch.mit.edu/projects/721040558/ ), so there might be some inaccuracies. Thanks to my math teacher who showed me this method and to @watashida for demonstrating that Scratch random numbers are not random.
