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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
SG49A.book Page 2 Friday, September 16, 2005 1:31 PM