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A function of real numbers is also called a step function if it is piecewise constant function involving a finite number of inputs. There are two types of step functions. Greatest Integer function (floor function) - A function f(x) is said to be a floor function which possesses biggest integer that is less than or equal to the input value x Smallest Integer function (ceiling function) - A function f(x) is said to be a ceiling function which is composed of the lowest integer that is either bigger or equal to the input value x A step function is also known as staircase function, since it looks like a staircase.
The VBA UBound function returns the highest subscript for a dimension of a supplied array. The syntax of the function is: UBound( ArrayName, [Dimension] ) Where the function arguments are: The array for which you want to find the highest subscript. An optional integer, specifying the dimension of the array, for which you require the highest subscript. ' Return the highest subscript of a one-dimensional array.