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92 APPENDIX - Reference Information
where: M1 =month of first date
DT1 =day of first date
Y1 =year of first date
M2 =month of second date
DT2 =day of second date
Y2 =year of second date
Note: If
DT1 is 31, change DT1 to 30. If DT2 is 31 and DT1 is 30 or 31,
change
DT2 to 30; otherwise, leave it at 31.
Error Messages
Note: To clear an error message, press P.
Error Possible Causes
Error 1
Overflow
• A result is outside the calculator range
( 9.9999999999999E99).
• Tried to divide by zero (can occur internally).
• Tried to compute 1/x when x is zero.
• Statistics worksheet: a calculation included X or Y
values that are all the same.
Error 2
Invalid
argument
• Tried to compute x! when x is not an integer 0-69.
• Tried to compute LN of x when x is not > 0.
• Tried to compute y
x
when y < 0 and x is not an
integer or the inverse of an integer.
• Tried to compute when x < 0.
• Amortization worksheet: tried to compute
BAL,
PRN, and INT when P2 < P1.
• Depreciation worksheet: a calculation included
SAL > CST.
Error 3
Too many
pending
operations
• More than 15 active levels of parentheses were
tried in a calculation.
• A calculation tried to use more than 8 pending
operations.
DBD Y2 Y1–360 M2 M1++ 30 DT2 DT1–+=
x
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