Change variable when another changed

Hello. I do not know how to change the variable b when a changed. For example:

>> a=2; 
>> b=a+4; 
>> while a<4 
>>a=a+1 
>>b 
>>end

So after the loop, the result of b is still 6. So can anyone help me to change to value of b without call b=a+4 again in the loop. Thanks in advance.

Answer 1

[Guillaume]

Without using OOP, this is not possible. You will have to recalculate b at each step of the loop.

While it would be possible to do it with dependent properties of a class, I wouldn't recommend doing it for such a trivial example. This is not how matlab is designed to work.

[Thi Thanh Duong]

Thank you.