Appendix — Reference Information 97
Error 5
No solution 
exists
• TVM worksheet: the calculator computed 
I/Y when 
FV, (N Q PMT), and PV all have the same sign. 
(Make sure cash inflows are positive and outflows 
are negative.)
• TVM, Cash Flow, and Bond worksheets: the LN 
(logarithm) input is not > 0 during calculations.
• Cash Flow worksheet: the calculator computed IRR 
without at least one sign change in the cash-flow 
list.
Error 6
Invalid date
• Bond and Date worksheets: a date is invalid (for 
example, January 32) or in the wrong format (for 
example, MM.DDYYYY instead of MM.DDYY.
• Bond worksheet: the calculator attempted a 
calculation with a redemption date earlier than or 
the same as the settlement date.
Error 7
Iteration limit 
exceeded
• TVM worksheet: the calculator computed 
I/Y for a 
very complex problem involving many iterations.
• Cash Flow worksheet: the calculator computed IRR 
for a complex problem with multiple sign changes 
or for the BA II PLUS™ PROFESSIONAL calculator 
PB/DPB with no payback period based on input 
cash flow values. 
• Bond worksheet: the calculator computed 
YLD for 
a very complex problem.
Error 8
Canceled 
iterative 
calculation
• TVM worksheet: $ was pressed to stop the 
evaluation of 
I/Y.
• Amortization worksheet: $ was pressed to 
stop the evaluation of BAL or INT.
• Cash Flow worksheet: $ was pressed to stop 
the evaluation of IRR.
• Bond worksheet: $ was pressed to stop the 
evaluation of 
YLD.
• Depreciation worksheet: $ was pressed to stop 
the evaluation of DEP or RDV.
Error Possible Causes