Changing Coefficients; Clearing All The Coefficients - Casio fx9750G User Manual

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Quadratic and Cubic Equations
u u u u u To solve a cubic equation that produces an imaginary number
solution
Example
It may take considerable time for the calculation result of cubic equations to
appear on the display. Failure of a result to appear immediately does not mean
that the unit is not functioning properly.
k k k k k Changing Coefficients
You can change a coefficient either before or after you register it by pressing w.
u u u u u To change a coefficient before registering it with w
Press the A key to clear the current value and then input another one.
u u u u u To change a coefficient after registering it with w
Use the cursor keys to highlight the cell that contains the coefficient that you want to
change. Next, input the value that you want to change to.
k k k k k Clearing All the Coefficients
While in the Quadratic or Cubic Equation Mode, press the 3 (CLR) function key.
This operation clears all the coefficients to zero.
To solve the following cubic equation:
x 3 x 2 x
+ + – 3 = 0
bwbwbw-dw
1(SOLV)
3(CLR)
w w
w w
w w w
w
1 2 3 4 5 6
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