MATLAB Help

Given the matlab code that uses Monte Carlo method to estimate pi and the difference from true value for the fixed number of random points:

a=10; % the experiment event number r=1; %the circle radius c=0; % sucessful event number for i=1:a s=-r+1*r*rand(); t=-r+1*r*rand(); pi_sim(i)=4*c/a pi_dif(i)=pi-pi_sim(i) if ((s.^2+t.^2)<=r^2) c = c+1 end end

Question: With the given MATLAB code, time the execution of the code for various numbers of points, and plot the precision vs the computational cost.