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Use this screen to specify 2 (quadratic) or 3 (cubic) as the degree of the
equation, and input values for each of the coefficients.
(1) Coefficient name
(2) Element value
(3) Arrow indicates direction you should scroll to view other elements.
• Any time until you input a value for the final coefficient ( c for a
quadratic equation,
d
for a cubic equation), you can use the and
keys to move between coefficients on the screen and make
changes, if you want.
• Note that you cannot input complex numbers for coefficients.
Calculation starts and one of the solutions appears as soon as you input a
value for the final coefficient.
(1) Variable name
(2) Solution
(3) Arrow indicates direction you should scroll to view other solutions.
• Press the key to view other solutions. Use and to scroll
between all of the solutions for the equation.
• Pressing the key at this point returns to the coefficient input
screen.
•
Certain coefficients can cause calculation to take more time.
Example 1: To solve the equation
x
3
- 2
x
2
-
x
+ 2 = 0 (
x
= 2, -1, 1)
(Degree?) 3
( a ?) 1
(
b ?)
2
( c ?) 1
( d ?) 2
( x 1 = 2)
56
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