Chapter 3: Function Graphing 129
minimum, maximum
minimum, maximumminimum, maximum
minimum, maximum
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 b ound, right bound, and guess as described for zero.
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
intersectintersect
intersect
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.