Know More About :- Fundamental Principle Of Counting [2.75] = 2 (greatest integer less than and equal to 2.75) [0.74] = 0 (greatest integer less than and equal to 2.75) is called the Greatest Integer Function or the floor function. [3] = 3 (as 3 is itself an integer that means equal to x ) [-7.45] = -8 (greatest integer less than -7.45 is -8) The function f : R → R defined by f(x) = [x] for all x ? R