I want to multiply the first two numbers of a digit together and subtract the third from it!

I have the number

223456

I want to multiply the first two digits together and subract by the third. example from above: 2*2-3

I have made the number into a string using the following:

%convert the number to individual digits digits = code_string - '0';

so as far as I know the matrix looks like: [2 2 3 4 5 6] and again I want to multiply the first number by the second and subtract the third.

Thanks!

Lucky

Answer 1

[per isakson]

Another way (, which I like better)

    str = '223456';
    cac = textscan( str, '%1f%1f%1f%*s', 'CollectOutput', true );
    num = cac{1}
    num(1)*num(2)-num(3)

returns

    num =
         2     2     3
    ans =
         1