Dy/Dx - Texas Instruments TI-83 Manual Book

3. Press † or }, if necessary, to move the cursor to the second
function, and then press Í.
4. Press ~ or | to move the cursor to the point that is your guess as to
location of the intersection, and then press Í.
The cursor is on the solution and the coordinates are displayed, even if
format is selected.
CoordOff
corner. To restore the free-moving cursor, press |, }, ~, or †.

dy/dx

(numerical derivative) finds the numerical derivative (slope) of a
dy/dx
function at a point, with H=1âL3.
To find a function's slope at a point, follow these steps.
1. Select
6:dy/dx
displayed.
2. Press } or † to select the function for which you want to find the
numerical derivative.
3. Press | or ~ (or enter a value) to select the
calculate the derivative, and then press Í.
The cursor is on the solution and the numerical derivative is displayed.
TI-83 Plus Function Graphing
Intersection
from the
CALCULATE
is displayed in the bottom-left
menu. The current graph is
value at which to
X
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