Accept 2 numbers from user

This is my current code. how do i add this part of my algorithm into matlab code

integer :: a, b, c
integer :: abc, a3b3c3
integer :: count
count = 0
count = count + 1

clc
  num1 = input('Enter num1 value: ');
  num2= input('Enter num2 value: ');
  fprintf('Armstrong numbers between %d and %d are: \n',num1 ,num2);

     for a = 1 : 9
     for b = 0 : 9
     for c = 0 : 9
     n = a*100 + b*10 + c;
     an = a^3 + b^3 + c^3;
     if n == an
     fprintf('%d, ',an)

     end
     end
     end
     end

Answer 1

[Andrei Bobrov]

a1 = 1 : 9;
b1 = 0 : 9;
c1 = 0 : 9;

num1 = input('Enter num1 value: ');
num2= input('Enter num2 value: ');

[c,b,a] = ndgrid(c1,b1,a1);
n = a*100 + b*10 + c;
an = a^3 + b^3 + c^3;

t1 = n >= num1 & n <= num2;
t2 = an == n;

out = an(t1 & t2);

[Josaiah Ang]

i'm getting an error msg.

Undefined function or variable 'c1'.

Error in Untitled3 (line 6)

clc
num1 = input('Enter num1 value: ');
num2= input('Enter num2 value: ');
fprintf('Armstrong numbers between %d and %d are: \n',num1 ,num2);

[c,b,a] = ndgrid(c1,b1,a1);
 for a = 1 : 9
 for b = 0 : 9
 for c = 0 : 9
 n = a*100 + b*10 + c;
 an = a^3 + b^3 + c^3;
 out = an(n == an);
 fprintf('%d, ',an)

   end
   end
   end

[Josaiah Ang]

a1 = 1 : 9;
b1 = 0 : 9;
c1 = 0 : 9;
num1 = input('Enter num1 value: ');
num2= input('Enter num2 value: ');
[c,b,a] = ndgrid(c1,b1,a1);
n = a*100 + b*10 + c;
an = a.^3 + b.^3 + c.^3;
t1 = n >= num1 & n <= num2;
t2 = an == n;
out = an(t1 & t2);

i'm getting the output like this. it not displaying any result.

[Walter Roberson]

The calculation for Armstrong numbers depends upon the number of digits. The program is for 3 digit Armstrong numbers only. You are trying to find some 1 digit Armstrong numbers and some 2 digit Armstrong numbers. Your algorithm needs to be changed for that.