In the Home screen, press F3 to access the Calc menu. Then press 3 to select **3:limit(** . Alternatively, after
pressing F3, highlight **3:limit(**, then press ENTER. Use the syntax:

limit(expression,variable,value)

* note: value may be a real number or infinity.*

For example, to find , after **limit(** in the entry line, type:

Press . The limit is -4.

To find , after **limit(** in the entry line, type:

) [ is located above the CATALOG key.]

Press . The limit is 0.

One also can determine one-sided limits by using the syntax: limit(expression,variable,value,n). To determine a left-sided
limit, insert a negative number for n. To determine a right-sided limit, insert a positive number for n. For example,
to find , after **limit(** in the entry line, type:

Press . The limit is infinity. |