How to make two conditions for a while loop?

I'm making an application for L'hopitals rule so I need a while loop whenever the limit of f(x) and g(x) are both 0. How would I do that?

This is what I have

while(limit(a)=0 & limit(b)=0)

Answer 1

[Wayne King]

You need the == equals

while(x==0 & y==0)

For example:

   syms x
   y = x;
   f = x^2;
   if (limit(y,x,0)==0 & limit(f,x,0)==0)
    disp('true');
   else 
     disp('false');
   end

Answer 2

[trinuj Vongsomtakul]

How do I write

while (testPerformance > 9 & valperformance >9)
  ii = ii+1;

in MATLAB? It is an error when i try to run it. I would like to stop the iteration when these 2 conditions are met.

[Image Analyst]

Try using && instead of &, like this:

while (testPerformance > 9 && valperformance >9) 
  ii = ii+1;
  % other code....
end

[Abdulaziz Abutunis]

I think this will keep repeating the loop not stopping it

[Anom Sulardi]

while (testPerformance > 9 && valperformance >9)

ii = ii+1;

if ii==ii(end)

end

% other code....

end

Answer 3

[Sebastian Arteaga]

Con I do condition OR condition in a while loop?