Casio FX-9750G Руководство - Страница 8

Просмотреть онлайн или скачать pdf Руководство для Калькулятор Casio FX-9750G. Casio FX-9750G 9 страниц. 3. solve, differential/quadratic differential, integration, maximum/minimum value, and calculations
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Casio FX-9750G Руководство
7 - 3
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:
3
2
x
x
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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