Function Graphing 3-27
8303FUNC.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:16 PM Printed: 02/19/01 1:35
PM Page 27 of 28
minimum and maximum find a minimum or maximum of a
function within a specified interval to a tolerance of 1âL5.
To find a minimum or maximum, follow these steps.
1. Select 3:minimum or 4:maximum from the CALCULATE
menu. The current graph is displayed.
2. Select the function and set left bound, right bound, and
guess as described for zero (steps 2 through 4; page 3.26).
The cursor is on the solution, and the coordinates are
displayed, even if you have selected CoordOff format;
Minimum or Maximum is displayed in the bottom-left
corner.
To move to the same x-value for other selected functions,
press } or †. To restore the free-moving cursor, press |
or ~.
intersect finds the coordinates of a point at which two or
more functions intersect using solve(. The intersection
must appear on the display to use intersect.
To find an intersection, follow these steps.
1. Select 5:intersect from the CALCULATE menu. The
current graph is displayed with First curve? in the
bottom-left corner.
2. Press † or }, if necessary, to move the cursor to the
first function, and then press Í. Second curve? is
displayed in the bottom-left corner.
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 CoordOff format is selected. Intersection
is displayed in the bottom-left corner. To restore the free-
moving cursor, press |, }, ~, or †.
minimum,
maximum
intersect