Getting Started

for

The for loop repeats a group of statements a fixed, predetermined number of times. A matching end delineates the statements.

• for n = 3:32
     r(n) = rank(magic(n));
  end
  r
  

The semicolon terminating the inner statement suppresses repeated printing, and the r after the loop displays the final result.

It is a good idea to indent the loops for readability, especially when they are nested.

• for i = 1:m
     for j = 1:n
        H(i,j) = 1/(i+j);
     end
  end
  

switch and case

while