HP 50g User Manual download pdf (Page 135)

Page 11-2

Function lim is entered in ALG mode as lim(f(x),x=a) to calculate

the limit

. In RPN mode, enter the function first, then the

expression ‘x=a’, and finally function lim. Examples in ALG mode are

shown next, including some limits to infinity, and one-sided limits. The

infinity symbol is associated with the

0 key, i.e.., „è.

To calculate one-sided limits, add +0 or -0 to the value to the variable. A

“+0” means limit from the right, while a “–0” means limit from the left. For

example, the limit of

as x approaches 1 from the left can be

determined with the following keystrokes (ALG mode):

‚N~„l˜$OK$ R!ÜX-

1™@íX@Å1+0`

The result is as follows:

)(lim xf

ax →

1−x

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HP 50g User Manual Page 135