Casio 3950P User's Guide download pdf (Page 46)

E-44

Statistical Data Memory and

Program Memory

The following shows how the calculator uses memory for storage of

statistical data and programs.

Statistical

Data

Programs

(a) Statistical data only

(256 bytes)

(b) Shared between statistical data

and programs (360 bytes)

and statistical data (24 bytes)

←

kStatistical Data

•Each x-data or y-data (for regression calculations) item and each

frequency value (other than 1) that you input uses up eight bytes of

memory.

Example: Inputting the following in the SD Mode uses 40 bytes of

memory: 30 A G 2

S 27 A G 1

S 32 A G 5

•The memory area indicated as (a) in the above illustration is exclusively

for statistical data items. Since this area has 256 bytes, it can contain up

to 32 individual (frequency = 1) x-data items (256 bytes  8 bytes per

data item = 32).

•When memory area (a) becomes full, statistical data items are stored in

the free space (space not being used for program storage) of memory

area (b), if there is any. If there are no programs currently stored in

memory, memory area (c) is also used to store statistical data items.

Memory areas (a), (b), and (c) have a total capacity of 640 bytes, so there

is enough total memory to store up to 80 individual (frequency = 1) x-data

items (640 bytes  8 bytes per data item = 80).

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Casio 3950P User's Guide Page 46