HP 20B manual Errors, Error Messages and Calculator Status, 1Error Messages

Errors

11 Errors

Error Messages and Calculator Status

Table 11-1Error Messages

Error Message	Status
ER: Underflow	The calculation generated an underflow (result of 0).
ER: x/0	Division by zero.
ER: 0/0	Zero divided by zero.
ER: ∞*0	Infinite multiplied by zero.
ER: ∞/∞	Infinite divided by infinite.
ER: √/ (x<0)	Square root of a negative number.
ER: LN (0)	LN of 0.
ER: LN (x<0)	LN of a negative number.
ER: ATrig(x>1)	ASIN or ACOS of a number for which the absolute
	value is > 1.
ER: 1^∞	Attempted calculation of 1^+/-Infinite.
ER: (x<0)^∞	Attempted calculation of the infinite power of a
	negative number.
ER: ∞^0	Attempted calculation of +/-∞^0.
ER: ∞^(Frac)	Attempted calculation of +/-∞^ (non-integer y).
ER: (x<0)^(Frac)	Attempted calculation of (-x) ^ (non-integer y).
ER: Out of Bounds	Input out of bounds.
ER: Invalid P/YR	Returned by TVM functions if payments per year are
	invalid (<0 or non-integer).
ER: Invalid Input	Returned if arguments are invalid for any reason.
ER: Invalid I%	Returned by finance functions if I is ≤ 100%.
ER: No Solution	Returned when there is no solution to the problem.
ER: Many or No Solutions	Returned if there is no solution, or more than one
	solution to the problem.

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