Casio fx-5800P k Clearing All Memory Contents, k User Memory Area, A Clearing All Variables (to 0), A Using a Variable in a Calculation

A Using a Variable in a Calculation

You can use variables in calculations the same way you use values.

Example: To calculate 5 + A 5+S0(A)E

A Clearing the Value Assigned to a Variable (to 0)

Example: To clear variable A 01~(STO)0(A)

A Clearing All Variables (to 0)

Use the MEMORY Mode screen to clear the contents of all the variables. See “Memory Manager (MEMORY)” on page 126 for more information.

k Clearing All Memory Contents

Perform the operation below when you want to clear all variables (including variable M) and Answer Memory (Ans) to zero.

z – {CLR} – {Memory}E

Reserving Variable Memory

If you find that the calculator’s default variables (A through Z) are not enough for your purposes, you can reserve variable memory and create “extra variables” for storage of value.

Extra variables work like array variables of an array named “Z” when assigning or recalling their values. An extra variable name consists of the letter “Z” followed by a value in brackets, like Z[5].

k User Memory Area

Your calculator has a 28500-byte user memory area that you can use to reserve variable memory and add extra variables.

Important!

•You can perform the procedure to reserve variable memory in the COMP Mode or in a COMP Mode program. All of the sample operations in this section are performed in the COMP Mode (N1).

•The 28500-byte user memory is used for storage of extra variables and programs. This means that increasing the number of extra variables reduces the amount of memory available for storing programs. So also, storing programs in memory reduces the amount of memory available for storing extra variables.

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