rounding - What is the best way to round numbers in Clojure?

Question

This is an easy one. But anyway, I think it is a good idea to have this question answered here for a faster, easier reference.

This operation:

(/ 3 2)

yields this:

3/2

I need one function to round up, which would yield 2 and another one to round down, which would yield 1.

question from:https://stackoverflow.com/questions/28551000/what-is-the-best-way-to-round-numbers-in-clojure

Answer 1

You can java interop (Math/(floor|ceil). E.g.:

user=> (int (Math/floor (/ 3 2)))
1
user=> (int (Math/ceil (/ 3 2)))
2