HP 17bII Owner's Manual page 285

The numbers stored into built-in variables caused a division by zero in
the calculation. You must change one or more stored values. (Refer to
the equations in appendix B to see which variables appear in the
divisor.)
 
Attempted to calculate standard deviation with only one value in the
list.
Attempted to do curve fitting using an x-variable list in which all the
values are equal.
Attempted to do curve fitting using the logarithmic or power models
with a list for which the transformed values of x (ln x) are equal.
 
The calculator has insufficient memory available to do the operation
you've specified. Refer to "Managing Calculator Memory" on page
227 for additional information.
  
One of the following values for interest is less than or equal to － 100:
TVM menu: I%YR ÷ P/YR.
PER menu: NOM% ÷ P (calculating EFF%); EFF% (calculating
NOM%).
CONT menu: EFF%.
CFLO menu: I% (calculating NPV, NUS, or NFV) or estimate of IRR%.

Calculation of I%YR, IRR%, amortization results, a Solver variable, or
a SUM-list sort was interrupted.
 
File name : English-M02-1-040308(Print).doc
Error Messages 285
Print data : 2004/3/9