Limit Calculator
Enter a function of x and the value x approaches. The calculator samples the function from both the left and the right, builds a table of values, and reports the limit when both sides agree — or that the limit does not exist when they differ.
Frequently asked questions
How is the limit estimated?
The function is sampled at points closer and closer to the target from both sides; agreement between the two sides indicates the limit.
Can it detect when a limit does not exist?
Yes. If the left-hand and right-hand values disagree, the tool reports that the two-sided limit does not exist.
Does it handle removable discontinuities?
Yes. For a hole such as (x² − 1)/(x − 1) at x = 1 it still finds the limiting value.