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Solution 11243: Correcting an Error 5 on the BA II PLUS™ and the BA II PLUS™ PROFESSIONAL.

Why does an Error 5 occur on the BA II PLUS and the BA II PLUS PROFESSIONAL?

The BA II PLUS or the BA II PLUS PROFESSIONAL will produce an Error 5 when the signs for Present Value, Payment, and Future Value are the same (all positive or all negative). According to the type of Time Value of Money (TVM) problem being calculated, the sign may need to be changed for one of these values.

The rules for inflows (positive) and outflows (negative) are discussed in Chapter 2, page 32 of the BA II Plus guidebook and Chapter 2, page 21 of the BAII Plus Professional guidebooks.

Please see the BA II PLUS or BA II PLUS PROFESSIONAL guidebooks for additional information.