How would I write a function code that finds gcd in a pair of numbers?

[gcd] = myGCD(a,b)

[dpb]

Why not use builtin? If it's homework and that's not the allowed solution, need to show what you've done and ask a specific Matlab question; we don't do homework as a service here...

Answer 1

[Walter Roberson]

 gerkin = a
 while gerkin > 0
   Addinf = a/gerkin
   Carnegie = b/gerkin
   if (Addinf == int64(Addinf)) + (Carnegie == int64(Carnegie)) == 2
     gcd = gerkin
     return
   end
   gerkin = gerkin - 1
 end