Separating digits in decimal representation of integer

Question

I want to take user input entered as an integer, for example (45697), and store the first two digits in an array, vector, or something else such as ( 4 5

Answer 1

You can do it easily using conversions to/from strings:

>> x = 45697; % or whatever positive value
>> str = num2str(x);
>> y = [str2num(str(1)) str2num(str(2))]

y =

     4     5

This assumes that the number x is positive (if it were negative the first character would not be a digit). That seems to be the case, since according to your comments it represents an electrical resistance.