Sharp EL-W516X Calculation Examples Manual

[lrdheat]

Just discovered an interesting item that the TI 36pro can do that the CASIO fx-115ES PLUS cannot do...the Casio cannot include a d/dx in a solve problem. The TI can! Enter solve, enter the d/dx, set where x equal to x, enter a guess for x, solve for x, and you get an answer for x when d/dx=0 which will be a min or max of f(x). The variable x now has the number that solve arrived at. If you type in the equation and enter it, you get the value of f(x) at that point. Nicely, since x root of y is available, answers are available for negative numbers where something like 3 root of x is involved.