how to sort this looping ?

anyone can help me to short this looping ? because when I want to change setting it's take to long :(

clc; clear;

wmin = 0.4; wmax = 1.2;

[Rik]

Are intentionally overwriting w every loop? Also, I would suggest converting this to logical indexing instead of a loop. It will be much faster.

[Muhammad Hafiz]

thanks Rik :)

[KL]

Please do not delete your question contents like this. Answers serve more like a FAQ/documentation with examples, now it doesn't make any sense.

Answer 1

[KL]

Rik is right, logical indexing will make it lot simpler and faster,

wmin = 0.4; wmax = 1.2;
it= 1:1000;

then pre-allocate w,

w = zeros(size(it));

then calculate w based on the value of it,

w(it<=425) = (150 - it(it<=425))./150.*(wmin-wmax)+wmax;
w(it>425&it<=550) = wmax-(wmax-wmin)./150.*(it(it>425&it<=550)-150);
w(it>550&it<=650) =  (100-(it(it>550&it<=650)-550))./100.*(wmin-(wmax-0.6))+(wmax-0.6);

and so on! Now you know how to write your remaining equations the same way.