Floor

floor returns the greatest integer less or equal to the argument.

Syntax: floor x; floor [x]

o)floor 10.5
10f
o)floor -10.5
-11f
o)floor -2.5 0 2.5
-3 0 2
o)abs floor -1.2
2f
o)

The function is atomic:

o)floor(2.3 4.5;6.7)
2 4f
6f
o)