Are FP and OO orthogonal?

Question

I have heard this time and again, and I am trying to understand and validate the idea that FP and OO are orthogonal.

First of all, what does it mean for 2 concepts t

Answer 1

One thing that helped me understand the relationship between FP and OO was the SICP book, particularly the section "Modularity of Functional Programs and Modularity of Objects" If you are thinking about these issues and you have a spare weekend, it might be worth reading through the first three chapters, its pretty eye opening.