Constructs

MATLAB provides the for, while and if constructs. MATLAB will wait for you to type the end statement before it executes the construct.

>> y=[];

 >> for x=0.5:0.5:5

 y=[y,2*x];

 end

 >> y

 >> n=3;

 >> while(n ~= 0)

 n=n-1

 end

 >> if(n < 0)

 -n

 elseif (n == 0)

 n=365

 else

 n

 end

The three numbers in the for statement specify start, step and end values for the loop. Note that you can print a variable's value out by mentioning its name alone on the line. ~= means `not equal to' and == means `equivalent to'.