HP 39g+ Graphing manual To find derivatives in the Function aplet’s Symbolic view, Show the result

3. Show the result.

To find derivatives in the Function aplet’s Symbolic view

hp 39g+

To find the derivative of the function in the Function aplet’s Symbolic view, you define two functions and define the second function as a derivative of the first function. For example, to differentiate sin (x2) + 2 cosx :

1.Access the Function aplet’s Symbolic view and define F1.

2

2.Define F2(X) as the derivative of F(1).

F1

3.Select F2(X) and evaluate it.

4.Press to display the result. Note: Use the arrow keys to view the entire function.

hp 39g+

You could also just define

F1(x)= dx( sin (x2) + 2 cos (x)) .

11-22 Using mathematical functions