Inequality Calculations (Ineq) (Fx-95Es Plus Only) - Casio fx-82ES PLUS User Manual

Note
• You can use the numerical table screen for viewing values only. Table contents
cannot be edited.
• The numerical table generation operation causes the contents of variable X to be
changed.
• The specified Start, End, and Step values should produce a maximum of 30 X-
values for the numerical table being generated. Executing a numerical table
generation using a Start, End, and Step value combination that produces more than
30 X-values causes an error.
Important!
• The function you input for numerical table generation is deleted whenever you
display the setup menu in the TABLE Mode and switch between Natural Display
and Linear Display.
Inequality Calculations (INEQ)
(fx-95ES PLUS only)
You can use the following procedure to solve a quadratic inequality or
cubic inequality.
1. Press (INEQ) to enter the INEQ Mode.
2. On the menu that appears, select an inequality type.
To select this inequality
type:
Quadratic inequality
Cubic inequality
3. On the menu that appears, use keys
inequality symbol type and orientation.
4. Use the Coefficient Editor that appears to input coefficient values.
2
• To solve x + 2x - 3 < 0, for example, input the coefficients a = 1, b = 2,
c = -3 by pressing 1
Press this key:
2
(aX + bX + c)
3 2
(aX + bX + cX + d)
through
2 3 .
48
to select the