Sharp EL-9650, Operation Manual, Page: 141 / 373

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GRAPHING FUNCTIONS
• The split screen is always in the trace mode. Therefore, the cursor pointer appears
on the graph. Accordingly, the coordinate values are reversely displayed in the table
and the equation at which the cursor pointer is located is also reversely displayed.
• Using
<
or
>
, move the cursor along the graph. (Values reversely displayed
in the table are also changed accordingly.)
• When two or more graphs are displayed on the screen, a desired graph is selected
using
≤
or
≥
. (Accordingly, the table or equation on the right of the screen is
also changed.)
• The table on the split screen does not relate to the table settings on the table full-
screen.
• The table on the split screen is displayed in units of trace movement amount based
on the cursor pointer position on the graph screen. When the table full-screen is
displayed by pressing , a different table may appear on the screen.
• When the EXPRES or Y’ is set to ON on the FORMAT menu, the equation or
coordinates are displayed on the graph screen.
• Only equations whose graphs can be drawn are displayed on the split screen.
• Press
or on the split screen to display the full-screen of the graph or table.
To exit the split screen, press any of other function keys.
(5) Substitution graph
• The substitution graph allows you to input an equation using characters and vari-
ables, and substitute numeric values for the characters to draw its graph.
• The substitution graph is valid only in the rectangular coordinate system.
Using this function, any number of numeric value sets can be substituted while
referring to the graph drawing screen. This clearly shows the changes in the graph
depending on numeric values.
For example, the graph for “Y1 = AX 3 + BX 2 + CX 2 – D” is drawn by substituting
numeric values for variables A, B, C, and D of the equation.
EL-9650-(04)En (079-134) 8/7/00, 9:08 PM 131