CASIO

The last calculation result obtained is stored in Ans (answer) memory. The calculation result obtained prior to the last one is stored in PreAns (previous answer) memory. Displaying the result of a new calculation will move current Ans memory contents to PreAns memory and store the new calculation results in Ans memory. PreAns memory can be used only in the COMP Mode. PreAns memory contents are cleared whenever the calculator enters another mode from the COMP Mode.

Using Ans Memory to Perform a Series of Calculations

Example: To divide the result of 3 × 4 by 30  (LineIO)

• 34
• 12

• (Continuing)  30
• 

Inputting Ans Memory Contents into an Expression

Example: To perform the calculations shown below:

• 123456
• 579

• (Continuing)  789
• 

Using PreAns Memory

Example: For Tk+2 = Tk+1 + Tk (Fibonacci sequence), determine the sequence from T1 to T5. Note however, that T1 = 1 and T2 = 1.

• T1 = 1

  1
• 

• (Ans = T1 = 1)

• T2 = 1

  1
• 

• (Ans = T2 = 1, PreAns = T1 = 1)

• T3 = T2 + T1 = 1 + 1

  (PreAns)
• 

• (Ans = T3 = 2, PreAns = T2 = 1)

• T4 = T3 + T2 = 2 + 1

  
• 

• (Ans = T4 = 3, PreAns = T3 = 2)

• T5 = T4 + T3 = 3 + 2

  
• 

Result: The sequence is {1, 1, 2, 3, 5}.

Your calculator has nine preset variables named A, B, C, D, E, F, M, X, and Y.
You can assign values to variables and use the variables in calculations.

Example:

To assign the result of 3 + 5 to variable A

• 35(STO)(A)
• 8

To multiply the contents of variable A by 10

• (Continuing)  (A)10
• 80

To recall the contents of variable A

• (Continuing)  (A)
• 8

To clear the contents of variable A

• 0(STO)(A)
• 0

You can add calculation results to or subtract results from independent memory.
The "M" indicator appears on the display when there is any value other than zero stored in independent memory.

Example:

To clear the contents of M

• 0(STO)(M)
• 0

To add the result of 10 × 5 to M

• (Continuing)  105
• 50

To subtract the result of 10 + 5 from M

• (Continuing)  105(M-)
• 15

To recall the contents of M

• (Continuing)  (M)
• 35

Ans memory, independent memory, and variable contents are retained even if you press , change the calculation mode, or turn off the calculator.
PreAns memory contents are retained even if you press and turn off the calculator without exiting the COMP Mode.
Perform the following procedure when you want to clear the contents of all memories.

(CLR)(Memory)(Yes)