5-31
(Y-ICPT) ...
y
-intercept
(ISCT) ... Intersection of two graphs
(
E
)
(Y-CAL) ...
y
-coordinate for given
x
-coordinate
(
E
)
(X-CAL) ...
x
-coordinate for given
y
-coordinate
(
E
)
(
°
dx
) ... Integral value for a given range
4. When there are multiple graphs on the screen, the selection cursor (
I
) is located at the
lowest numbered graph. Press
D
and
A
to move the cursor to the graph you want to
select.
5. Press
U
to select the graph where the cursor is located and display the value produced by
the analysis.
When an analysis produces multiple values, press
C
to calculate the next value.
Pressing
B
returns to the previous value.
• Either of the following can cause poor accuracy or even make it impossible to obtain
solutions.
- When the graph of the solution obtained is a point of tangency with the
x
-axis
- When a solution is an inflection point
I
Calculating the Point of Intersection of Two Graphs
Use the following procedure to calculate the point of intersection of two graphs.
1. Draw the graphs.
2. Press
(G-SLV)
(ISCT). When there are three or more graphs, the selection cursor
(
I
) appears at the lowest numbered graph.
3. Press
D
and
A
to move the cursor to the graph you want to select.
4. Press
U
to select the first graph, which changes the shape of the cursor from
I
to
R
.
5. Press
D
and
A
to move the cursor to the second graph.
6. Press
U
to calculate the point of intersection for the two graphs.
When an analysis produces multiple values, press
C
to calculate the next value.
Pressing
B
returns to the previous value.
Example
Graph the two functions shown below, and determine the point of
intersection between Y1 and Y2.
Y1 =
x
+ 1, Y2 =
x
2
Содержание FX-7400GII
Страница 337: ...E CON2 Application ...