Montecarlo simulation

estimation of pi, using montecarlo method

%Draw a square of area 1 on the ground, then inscribe a circle within it.
%Now, scatter some small objects (for example, grains of rice or sand) throughout the square.
%If the objects are scattered uniformly, then the proportion of objects within the circle vs objects within the square should be approximately ?/4,
%which is the ratio of the circle's area to the square's area.
%Thus, if we count the number of objects in the circle, multiply by four,
%and divide by the number of objects in the square, we get an approximation to pi.