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4. When done entering the known
values, press @ h . The
calculation result will be displayed on
the next screen.
Pressing C will bring back the
previous entry screen.
5. To go back to the TOOL menu to perform another calculation, press
@ V.
C POLY
This tool is designed so that quadratic (ax
+ cx + d = 0) equation may be solved.
1. Press C to select C POLY, and
select the degree. For example,
press 2 if a quadratic equation
is desired.
2. In the next screen, an equation ax
bx + c = 0 is displayed, with an entry
area for the known values — a, b,
and c.
3. Enter the values, as shown in the screen to the right. Pressing E
at each entry will store the value, and sets the cursor at the next entry
area.
4. When done, press @ h
to execute the calculation. The
results (i.e. the x-intersects) will be
displayed.
5. To enter a different set of numbers for a, b, and c, press C to go
back to the previous screen. To select a different degree of polynomial,
press @ V to go back to the TOOL menu.
• If the solution cannot be displayed on the screen, a symbol will appear
at the bottom left corner of the screen. Press } to scroll the screen.
Chapter 3: Manual Calculations
2
+ bx + c = 0) or cubic (ax
2
+
3
2
+ bx
67
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