Double floating precision exercise
Assume that every single operation has a relative error ≤ eps. Starting with this, what if x = 1.001 and y = 0.999, or x = 10.01 and y = 9.99, or x = 1,001,000,000 and y = 999,000,000? How is log (x / y) affected, and how is log (x) - log (y) affected?