hp calculators
HP 20b Operating modes and clearing options
Error Message
ER: User Abort
ER: ∞ Result
ER: Insufficient Data
ER: No Payback
ER: Unique solution to IRR Not Found
ER: Stack
ER: Parenthesis:
ER: Insufficient Memory
ER: No Solution Found
hp calculators
Cause or explanation
Returned by long functions if user requests break.
Returned if the result is infinite.
Returned by statistics functions if there is insufficient data for analysis.
Returned by payback function if there is no payback on this problem.
Returned if IRR tries to calculate a solution but cannot find it. User should supply a new
guess and try again.
Stack overflow.
An error linked to use of parentheses: unmatched, too many, etc.
Insufficient memory.
No solution found.
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HP 20b Operating modes and clearing options - Version 1.0