Find out how long after division will be an integer?

Hello! Is it possible to know when the condition will be met, what has been divided and the result is an integer?

A=[1:100];
for i=1:30
    Ax(i)=A(i)/2;
    if Ax(i) not a fractional number
        Ax(i)=Ax(i);
    else
        break
    end
end

Answer 1

[KSSV]

if mod(x,1)==0 then x is an whole number/ integer.

[Lev Mihailov]

I don't quite understand the given function

A(2)/2=1 % correctly and write to the array
A(3)/2= 1.5 % wrong and move on to the next correct number
A(4)/2=2 % correctly and write to the array

[KSSV]

A=[1:100];
count = 0 ; 
iwant = zeros([],1) ; 
for i=1:30
    Ax(i)=A(i)/2;
    if ~mod(Ax(i),1) % Ax(i) not a fractional number
      count = count+1 ; 
      iwant(count)=Ax(i);
    end
end
iwant

You need not to use a loop.

idx = mod(Ax,1) ; 
iwant = Ax(idx==0) ; 

Answer 2

[madhan ravi]

Simple use mod()

 doc mod