Breaking a loop and displaying iteration

Hi, I have a simple loop for simulating pressure in a bicycle pump and tire. I have a for loop to simulate the pressure for each stroke of the pump, but I need to display only the values up until the pressure reaches 120 psi. How do I stop the loop once the value reaches this? Is there a way to display how many iterations it took to achieve this value?

Here is my code as of now, (I'm relatively new to Matlab and not very good)

p=14.7;

for i=1:101

    p = ((patm*v1+p*vtire)/(v2+vtire))
end

while p <= 120

    p = ((patm*v1+p*vtire)/(v2+vtire))
    if p>120, break, end
    disp(p)
        end

Answer 1

[Azzi Abdelmalek]

while p <= 120
  p = ((patm*v1+p*vtire)/(v2+vtire))
end
disp(p)

You don't need to break, when p>120 it leaves automatically the loop

You will need to initialize p

[Nick]

I tried taking the break function out, but when I ran the script it still outputs all the values. There are 101 simulated strokes and the value of p gets up to around 10,000.

[Azzi Abdelmalek]

post the entire code to allow testing it

[Image Analyst]

You probably still left that first "for" loop in there. Get rid of that. You also need to define v2.