Order Of Operations; Calculation Stacks; Error Messages And Error Locator - Canon F-789SGA Instruction Manual

Order of Operations

This calculator will automatically determine the operation
priority of each individual command as

Calculation Stacks

This calculator uses memory areas, called "stacks", to
temporarily store numeric value (numbers) commands (+, –,
x...) and functions according to their precedence during
calculations.
The numeric stack has 10 levels and command stack has
128 levels. A stack error [Stack ERROR] occurs whenever
you try to perform a calculation that exceeds the capacity of
stacks.
Calculations are performed in sequence according to "Order
of Operations". After the calculation is performed, the stored
stack values will be released.

Error Messages and Error locator

The calculator is locked up while an error message is shown on
the display to indicate the cause of the error.
Press
initial display of latest mode.
Press or
positioned next to the error.
Press
and return to the initial display of the latest mode.
to clear the error message, then return to the
to display input expression with the cursor
to clear the error message, replay memory history
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