ERRN

Member Of Menu: 
Control
Argument Types: 
None
Result Type(s): 
Integer
Invertible: 
No
Valid In Expression: 
No
Stack Diagram: 
→ Integer1

The ERRN operation returns a numerical value which represents the most recently raised error by the calculator. When used with the IFERR operation within a program, you can write error handlers for different error conditions.

The error numbers currently defined are:

Value Message
0 No error (only seen if you have never raised an error on the calculator)
1 Insufficient Memory
3 Undefined Local Name
257 No Room For UNDO
258 Can't Edit CHR(0)
259 Improper User Function
260 No Current Equation
261 No Room To ENTER
262 Syntax Error
286 Invalid PPAR
287 Non-Real Result
288 Unable To Isolate
289 HALT Not Allowed
292 UNDO Disabled
293 Command Stack Disabled
296 Wrong Argument Count
297 Circular Reference
298 Directory Not Allowed
299 Non-Empty Directory
513 Too Few Arguments
514 Bad Argument Type
515 Bad Argument Value
516 Undefined Name
517 LAST Disabled
769 Positive Underflow
770 Negative Underflow
771 Overflow
772 Undefined Result
773 Infinite Result
1281 Invalid Dimension
1537 Invalid ∑DAT
1538 Nonexistent ∑DAT
1539 Insufficient ∑ Data
1540 Invalid ∑PAR
2561 Bad Guess(es)
2562 Constant?
2817 Invalid Unit String
2818 Inconsistent Units

Some of these errors are here for future use and may not be generated by the current version of the calculator