Matlab help!

[FrostScYthe]

What does this statement mean in matlab?

for i = n:-1:j

[abhishek]

It's the header of a for loop. i takes on the value of n initially; the loop body (which you haven't shown) is executed; i changes by -1; and the loop repeats until i and j are equal.

Refer to: http://www.mathworks.com/access/helpdesk_r13/help/toolbox/rptgen/forloop.html

:smile: