Casio fx-9750G Equation Calculations - Manual (Page 8)

122
uuuuu
To solve a cubic equation that produces an imaginary number
solution
Example To solve the following cubic equation:
x 3 + x 2 + x – 3 = 0
bwbwbw-dw
1 (SOLV)
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 .
uuuuu
To change a coefficient before registering it with w w w w w
Press the A key to clear the current value and then input another one.
uuuuu
To change a coefficient after registering it with w w w w 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.
3 (CLR)
7 - 3
Quadratic and Cubic Equations
1 2 3 4 5 6