K stacks – Casio FX-820MS User Manual

Page 33

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E-31

k Stacks

This calculator uses memory areas, called “stacks,” to tem-
porarily store values (numeric stack) and commands (com-
mand stack) according to their precedence during calcu-
lations. The numeric stack has 10 levels and the command
stack has 24 levels. A stack error (Stack ERROR) occurs
whenever you try to perform a calculation that is so com-
plex that the capacity of a stack is exceeded.

Example:

1

2

3

4

5

1 2 3

4

5

6

7

Numeric Stack

Command Stack

1

2

3

4

5

2

3

4

5

4

҂

ѿ
҂

ѿ

1

2

3

4

5

6

7

• Calculations are performed in sequence according to

“Order of Operations.” Commands and values are de-
leted from the stack as the calculation is performed.

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