(TI-36X Pro) Using f(x) in Calculus

[lrdheat]

That is true...but on the 36X, if f( is defined as d/dx of the function of interest, and is solved in number solve to equal zero, the result is the x value of the extremum. You can then bring up edit f(, and delete the “d/dx” part, quit, hit table, bring up f(, and make it f(x), enter, and you get your f(x) value for the x value for your extremum point.