Examples

1. Suppose we wish to flip a coin N times and count how many times HEADS was flipped. An algorithm that solves this problem, could be:

   
       Get N from somewhere (parameter or user input or ???)
       declare a counter variable with two values (1 for heads and 2 for tails)
       for each integer 1 to N
           flip the coin (use randperm)
           increment the first or second element based on flip result
   		   
       display the HEADS and TAILS values
   		

   We need a variable to keep count, but we also need a variable N to tell us how many times to repeat the coin flip. The word for is a Matlab command that sets up an iteration through each value in a vector of values. It is another type of control statement available in Matlab.