Question

I have this numbers a = 7 , b= 9

Now I want to subtract the two numbers.

b - a = 2. Now that is ok

but a -b = -2

But I only want to know the diff i.e 2 not negative or positive like we have mod operator

Answer 1

This should do it

In [57]: abs(2 - -9)
Out[57]: 11

In [58]: abs(-1 - 5)
Out[58]: 6

keeping only 1 solution as suggested by Zero Piraeus