Solution 11843: Limit() Function Algorithm on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
How are limits calculated on the TI-89 Family, TI-92 Family, and Voyage 200 graphing calculators?
Limits of indeterminate forms are computed by series expansions, algebraic transformations and repeated use of L'Hopital's rule when all else fails. Limits of determinate forms are determined by substitution.
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