convert string to number array in matlab

Question

I have a script in which a string of number is entered

string=\'123\'

or

string=\'9823\'

I am trying to

Answer 1

use the function str2num()

str = '123';
str = str2num(str);

Note: To verify that i'm correct, type in 'whos str' in the command window, and check the class. A string has a class, char, and numeric values have a class, double

Answer 2

You can use cellstr:

cellstr('123')
ans =
{
  [1,1] = 123
}

Answer 3

str = '123';
num = str - '0';
% num = [1 2 3];