fx-9860GII

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FMEM

On a Casio calculator you can address a function memory

		▷		▷	FMEM
OPTN		F6		F6		F3

There are 20 function memories called f1 ∼ f20. You can use the functions any time in RUN·MAT mode. It is only available in SET UP Input/Output Line.

 

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Explanation

STO	Store a function in memory
RCL	Recall a function from memory
fn	Function number as a variable name inside an expression.
SEE	Show the complete function memory.

 

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Example 1

To store the function (A + B)(A − B) in function memory number 1

								== Function Memory ==  f1:(A+B)(A−B)  f2:  f3:  f4:  f5:  f6:
		STO		Store In   Function Memory       f[1∼20]:
(A+B)(A-B)		F1			1	EXE

 

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Example 2

To recall the contents of function memory number 1

RCL
F2	1	EXE		(A+B)(A-B)

The recalled function appears at the current location of the cursor on the display.

 

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Example 3

To calculate the function (A + B) (A − B) + 2 with A = 3 and B = 1

3➔A

3

➞

A

EXE

1

➞

B

EXE

3

1➔B

1

so that (3 + 1) (3 − 1) + 2 = 4 × 2 + 2 = 10

		fn
(A+B)(A-B)		F3	1	+	2	EXE		fn1+2
								10

 

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Example 4

To see the complete function memory contents

		== Function Memory ==  f1:(A+B)(A−B)  f2:  f3:  f4:  f5:  f6:
SEE
F4

 

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