Even simple-looking limits are sometimes quite complicated to compute. Mathematica
provides functionality to evaluate several kinds of limits.
to calculate limits; the first argument is the function and the second has the form variable
. You can expect that
You may want to calculate limits from the right or left. For example, although
is not well defined, Mathematica
defaults to limits from the right:
To force the limit to be from the left, use Direction->1
If you know something about a parameter in a limit, use the Assumptions
option to include this information.
Suppose you want to calculate
. Without knowing more, the limit cannot be calculated:
If, however, you know that
, then you can compute the answer: