Casio FX-82ES Plus User Manual

E-22

Step?

Input the increment step (Default = 1). 
Note: The Step specifies by how much the Start 
value should be sequentially incremented as the 
number table is generated. If you specify Start = 1 
and Step = 1, X sequentially will be assigned the 
values 1, 2, 3, 4, and so on to generate the number 
table until the End value is reached.

• Inputting the Step value and pressing 

 generates and displays the 

number table in accordance with the parameters you specified. 

• Pressing 

 while the number table screen is displayed will return to 

the function input screen in step 2.

 

To generate a number table for the function 

(

) = 

2

 + 

2

1

 for the  

 

 range –1 

 

 

 1, incremented in steps of 0.5    

 

      fx-82/85/350ES PLUS:  

(TABLE) 

 

                  fx-95ES PLUS:  

(TABLE)

 

 

#(X)V  1  2  

 

 

 1  1  0.5  

Note:  • You can use the number table screen for viewing values only. Table 
contents cannot be edited.  • The number table generation operation causes 
the contents of variable X to be changed. 

Important:  The function you input for number table generation is deleted 
whenever you display the setup menu in the TABLE Mode and switch between 
Natural Display and Linear Display. 

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.  

Quadratic inequality

(aX

2

 + bX + c )

Cubic inequality

(aX

3

 + bX

2

 + cX + d )

3. On the menu that appears, use keys 

 through  to select the inequality 

symbol type and orientation. 

4. Use the Coefficient Editor that appears to input coefficient values.   

• To solve 

2

 + 2

 – 3 < 0, for example, input the coefficients 

 = 1, 

 = 2, 

 = –3 by pressing 1

 2  3 . 

• To change a coefficient value you already have input, move the cursor 

to the appropriate cell, input the new value, and then press 

. 

• Pressing 

 will clear all of the coefficients to zero.