Texas Instruments TI-83 Plus Calculator "dy dx" Questions

...dy/dx, via the [2nd] [calc] menu, my calculator displays the dy/dx value at the bottom of the (graph)screen as it should. But only for a fraction of a second. The value is almost immediately covered ...

...dy/dx can do the same thing (calculate the first derivative) at one point on a displayed graph. It can be activated for graphs by pressing TRACE, then [2nd][CALC][6:dy/dx]. If you need the derivative ...

dY/dX= The last one is obviously the value of the derivative at the position of the cross. Move the cursor to another point to see the values X, Y, and dY/dX. You can also enter a value of X to find Y

Put the function into your Y= menu and graph it. Press 2nd and Trace to go to the calc menu and choose the "dy/dx" option. Type the x-value at which you want to evaluate the derivative and press enter

dx/dt or dy/dt)) for use with parametric functions? I am attempting to find the arc length of a parametric function. How does one do derivatives/integrals with respect to time on the CASIO fx-9860GII?

...dy/dx, the value of the derivative of the function at a point. 7: Integral (f(x),dx)For most of the foregoing calculations, you need to supply the interval of x-values that is of interest to you.To ...

...dy/dx. But first choose the point where you want it calculated (use cursor to move along the curve) and press ENTER. The value of the deivative will be calculated at the chosen point. The vertex of ...