how can I fix an error in while loop

the two condition of for loops are true, although the function doesn't implement the code under while

while(iter<maxI&dif>Eps)

the error is.

??? Error using ==> and Inputs must have the same size.

Error in ==> sinulator>solve at 356 while(iter<maxI&dif>Eps)

[Eman Ahmed Elsayed]

where Eps is always a double number like 0.01,0.0001

and dif is large number or small number

Answer 1

[Sean de Wolski]

Apparently iter<maxl is a different size than dif>eps

What is the output of these two commands:

size(iter<maxl)
size(dif)

?