I installed the n-th derivative program on my TI-84 Plus CE calculator. But whenever I enter the function, it keeps showing me "d#=". Now I am assuming that this means the n-th degree derivative (e.g., first derivative or second derivative, etc.) of the function. But whenever I keep pressing "1" for the first derivative, the calculator gives me an error:
ERROR: ARGUMENT
Check the type and number of arguments. Press + on menu item for Catalog help.
I did try to put in zero (0) for "d#=" just out of curiosity. It just gave me the function (as I expected, because the zeroth derivative of a function is simply itself).
Any help on this issue would be appreciated. Thanks.
