Casio fx-9860G SD User Manual page 79

k Stacks
The unit employs memory blocks, called stacks , for storage of low priority values and
commands. There is a 10-level numeric value stack , a 26-level command stack , and a 10-
level program subroutine stack . An error occurs if you perform a calculation so complex that
it exceeds the capacity of available numeric value stack or command stack space, or if
execution of a program subroutine exceeds the capacity of the subroutine stack.
Example
Numeric Value Stack
# Calculations are performed according to the
priority sequence. Once a calculation is
executed, it is cleared from the stack.
2-2-7
Special Functions
Command Stack
1
2
2
3
3
4
4
5
5
4
# Storing a complex number takes up two numeric
# Storing a two-byte function takes up two
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b
(
c
(
d
e +
f
(
g
+
h
value stack levels.
command stack levels.