This paper discusses the limit of function f (x) = | x | / X when x tends to 0 Use piecewise function, be specific

This paper discusses the limit of function f (x) = | x | / X when x tends to 0 Use piecewise function, be specific

F (x) = | x | / x, the left limit is - X / x = - 1, the right limit is x / x = 1, the left and right limits are not equal, the function has no limit at 0 point. You can also draw a graph, where x = 0 is, f (x) is the jumping point