Casio FX-9750GII-SC User Guide - Page 136

Graph to Table, Coordinate Rounding, Calculating the Root, On the Setup screen

Page 136 highlights

1. From the Main Menu, enter the GRAPH mode. 2. On the Setup screen, specify On for Derivative. 3. Draw the graph. 4. Press (TRCE), and the pointer appears at the center of the graph. The current coordinates and the derivative also appear on the display at this time. I Graph to Table You can use trace to read the coordinates of a graph and store them in a number table. You can also use Dual Graph to simultaneously store the graph and number table, making this an important graph analysis tool. 1. From the Main Menu, enter the GRAPH mode. 2. On the Setup screen, specify GtoT for Dual Screen. 3. Make V-Window settings. 4. Save the function and draw the graph on the main (left) screen. 5. Activate Trace. When there are multiple graphs on the display, press D and A to select the graph you want. 6. Use B and C to move the pointer and press U to store coordinates into the number table. Repeat this step to store as many values as you want. 7. Press *(CHNG) to make the number table active. I Coordinate Rounding This function rounds off coordinate values displayed by Trace. 1. From the Main Menu, enter the GRAPH mode. 2. Draw the graph. 3. Press (ZOOM)(E)(RND). This causes the V-Window settings to be changed automatically in accordance with the Rnd value. 4. Press (TRCE), and then use the cursor keys to move the pointer along the graph. The coordinates that now appear are rounded. I Calculating the Root This feature provides a number of different methods for analyzing graphs. 1. From the Main Menu, enter the GRAPH mode. 2. Draw the graphs. 3. Select the analysis function. (G-SLV)(ROOT) ... Calculation of root (MAX) ... Local maximum value (MIN) ... Local minimum value 5-30

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5-30
1. From the Main Menu, enter the
GRAPH
mode.
2. On the Setup screen, specify On for Derivative.
3. Draw the graph.
4. Press
(TRCE), and the pointer appears at the
center of the graph. The current coordinates and the
derivative also appear on the display at this time.
Graph to Table
You can use trace to read the coordinates of a graph and store them in a number table. You
can also use Dual Graph to simultaneously store the graph and number table, making this an
important graph analysis tool.
1. From the Main Menu, enter the
GRAPH
mode.
2. On the Setup screen, specify GtoT for Dual Screen.
3. Make V-Window settings.
4. Save the function and draw the graph on the
main (left) screen.
5. Activate Trace.
When there are multiple graphs on
the display, press
and
to select the graph you
want.
6. Use
and
to move the pointer and press
to store coordinates into the number table. Repeat
this step to store as many values as you want.
7. Press
(CHNG) to make the number table active.
Coordinate Rounding
This function rounds off coordinate values displayed by Trace.
1. From the Main Menu, enter the
GRAPH
mode.
2. Draw the graph.
3. Press
(ZOOM)
(
)
(RND). This causes
the V-Window settings to be changed automatically
in accordance with the Rnd value.
4. Press
(TRCE), and then use the cursor keys
to move the pointer along the graph. The coordinates
that now appear are rounded.
Calculating the Root
This feature provides a number of different methods for analyzing graphs.
1. From the Main Menu, enter the
GRAPH
mode.
2. Draw the graphs.
3. Select the analysis function.
(G-SLV)
(ROOT) ... Calculation of root
(MAX) ... Local maximum value
(MIN) ... Local minimum value