TI -82 Manual Book page 86

dy/dx
(numerical derivative,
dy/dx
(slope) of a function at a point with H = 1
1. Select
2. Move the cursor to the
derivative and press Í.
The result cursor is on the solution and the coordinate values are displayed
(even if you have selected
When you press |, ~, }, or †, the free-moving cursor appears.
‰f(x)dx
‰f(x)dx (numerical integral,
function a specified interval. It uses the
L3.
1
E
1. Select
a prompt to enter
2. Use † or } to move the cursor to the function for which you want to
calculate the integral.
3. Set Lower Limit
The integral value is displayed and the integrated area is shaded. When you
press |, ~, }, or †, the free-moving cursor appears.
Note: The shaded area is a drawing. Use
invokes Smart Graph to clear the shaded area. (Chapter 8)
3-24 Function Graphing
dy/dx from the CALC
X
CoordOff
CALC
‰f(x)dx from the
CALC
Lower Bound
and Upper Limit
item ) finds the numerical derivative
CALC 6
L3.
E
menu. The current graph is displayed.
value at which you want to calculate the
on the
WINDOW FORMAT
item ) finds the numerical integral of a
7
fnInt( function, with a tolerance of
menu. The current graph is displayed, with
.
as described for
ClrDraw
screen).
root .
or any change that