Writing a closed while loop

I'm trying to write part of a code that continues a function for the time set of 10.

So something like

while t =< 10
  delta_R = -10;

  Phi2 =  beta*(1-((omega_n/omega_d)*exp(-sigma*t).*cos((omega_d*t)-phi)));
  Phi2dot = diff(Phi2);

I have values for the terms, just don't know how to write a closed while loop (or closed loop) and I only get things about transfer loops which I'm not looking for.

[David Hill]

What is your question? What are you trying to do? I do not understand your explanation.

[David Scidmore]

Really just looking for the syntax to use a closed loop.

Like while the time of a function is less or equal to ten, a sinsudal force is being acted up on a ball. After the ten seconds it just stops.

[Walter Roberson]

10 clock time seconds, or 10 CPU seconds, or 10 simulated seconds?

[dpb]

See the examples at

doc while

The first one would seem to match your need with an incrementing operation instead of decrementing.

[David Scidmore]

@Walter Roberson, it would be t increments between 0 to 10. So it would be a function using t as time. So I guess that would be a simulated 10 seconds.

Answer 1

[Walter Roberson]

 t = 0;
 while t < 10
   some action
   t = t + appropriate increment
  end

However if the increment is constant then a lot of the time it makes more sense to write a for loop

tvals = linspace(0,10,75);  %use appropriate number of divisions
numt = length(tvals) ;
results = zeros(1 numt) ń

for tidx = 1:numt
  t = tvals(tidx) ;
  someaaction 
  results(tidx) = value;
end

plot(tvals,results)