How to check every single element in a vector

Hello everyone, I have a question about Matlab. I have a vector A=[ 1 1.2 1.3 1.4] and I need to create a loop to check every single element. Here is what I am trying to do:

for i= 1:100

whatever equations or process that gave me A=[ 1 1.2 1.3 1.4]

if A>=0.5

%(I want to check every single element not just a particular one. if not, I want Matlab to calculate a new value for A and check it again and again until they all less than 0.5. we started from i=1 in the first iteration. if the condition is not fulfilled take i=2, calculate a new A, and check again)

else

break

end

end

where A is printed vertically A=A(:)

Thank you

Answer 1

[Abdul A]

Thank you for your prompt response.

What about:

for i=1:100

A=[? ? ? ?]

if any (A>=0.5)

else

break

end

end

Answer 2

[Beder]

 B=zeros(size(A));
 B(A>=0.5)=1;
 while sum(B)>0
 for i=1:size(B)
  if B(i)==1
   A(i)=YOURFUNCTION
  end
 end
 B=zeros(size(A));
 B(A>=0.5)=1;
end

not tested. But maybe a hint how to do it. There will be for sure more advanced solutions out there :)