Update stupid-calc.py
Update stupid-calc.py

Silly stupid me forgot math.sqrt() for the discriminant (sh.......)
Now it works.
Now I have to get ready for school, with my math homework UNFINISHED!
Only two more days 'til it's late.
Maybe I should've done it the manual way?
isabellemao/Hello-World,isabellemao/Hello-World,isabellemao/Hello-World