Anantha Krishnan R.

Greatest integer function also called as the floor function is one of the generally used function in mathematics. The greatest integer function of a real number x is represented by [ x ] or | x |. This function is also known by the names of step or floor function. It returns the greatest integer less than or equal to x. Another way to understand it that the greatest integer function rounds down the values into the nearest integer possible. This function is piece wise defined. This function basically gives us the nearest integer value of the input as an output.It is represented by the square bracket ( [X] ). Definition of function is given below, f(x) = [X] = greatest integer <= Domain of function: {R}, set of real number Range: { I }, Set of integer value.