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Now press
ENTER
and read off the zero.
minimum:
This feature will find the x and y coordinates of a relative (or local) minimum of the
function. A relative or local minimum is a point on the graph that is lower than the points around
it.
Enter a function at
Y=
and press
GRAPH
. Move the cursor so that it is to the left of the low
point. Press
ENTER
. Move the cursor so that it is to the right of the low point. Press
ENTER
.
Then press
ENTER
and read off the coordinates of the relative (local) minimum.
Example: Find the coordinates of the relative (local) minimum of the graph of
3 2
2 3
f x x x x
.
Enter the function in the
Y=
menu and press
GRAPH
. Adjust the viewing window if needed.
The relative (local) minimum is located in the 4
th
Quadrant. Press
2
nd
TRACE
and select
minimum
.
Press
ENTER
.
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