While Loop

I'm trying to get a loop inplace which changes the input until the output is met. For example, if b=3*n and I want b to be greater than 50 then I want n to increase by 1 until it fullfils the above critera. I know I can get n to increase using a 'while loop' (see below) but I'm pretending I don't know the final minimum value of n.

n=9;

while n<50
    n=n+1;
end

n

However (as mentioned) I haven't a clue on how I alter this to work for the above mentioned equation for b.

P.S. My actual code is (obviously more complex than the equation for b but I just want to get my head around how to do this and then see if I can get it to work on my actual code.

Many thanks in advance and sorry if I'm being a dunce :P

Answer 1

[Walter Roberson]

n = InitialValue;
b = YourFormula(n);  %e.g., b = 3*n
while b < YourThreshold
  n = n + 1;
  b = YourFormula(n);
end

[Stephen]

Thank you, I tried something similiar but I must have messed it up somehow :/ Shall now try addapting it to my actual code :D

[Stephen]

...and back ;)

Just applied it to my actual code and (With a bit of tweaking) got it to work. Works like a dream now and am very pleased with the results :D

Thank you very much for the help learning the basics!