for

Scilab Keyword
Last update : 04/10/2004

for - language keyword for loops

### Description

Used to define loops. Its syntax is: `for variable=expression ,instruction, .. ,instruction,end`

`for variable=expression do instruction, ,instruction,end`

If `expression` is a matrix or a row vector, `variable` takes as values the values of each column of the matrix.

Useful example : `for variable=n1:step:n2, ...,end`

If `expression` is a list `variable` takes as values the successive entries of the list.

Warning: the number of characters used to define the body of any conditionnal instruction (if while for or select/case) must be limited to 16k.

### Examples

    n=5;
    for i = 1:n, for j = 1:n, a(i,j) = 1/(i+j-1);end;end
    for j = 2:n-1, a(j,j) = j; end; a
    for  e=eye(3,3),e,end
    for v=a, write(6,v),end
    for j=1:n,v=a(:,j), write(6,v),end
    for l=list(1,2,'example'); l,end

### See Also

`while` , `end` , `do` ,