Difference between revisions of "Documentation/How Tos/Calc: ISERR function"
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* [[Documentation/How_Tos/Calc: ISERROR function|ISERROR]] | * [[Documentation/How_Tos/Calc: ISERROR function|ISERROR]] | ||
* [[Documentation/How_Tos/Calc: ISNA function|ISNA]] | * [[Documentation/How_Tos/Calc: ISNA function|ISNA]] | ||
| − | * [[Documentation/How_Tos/Calc: NA function|NA]] | + | * [[Documentation/How_Tos/Calc: NA function|NA]] |
| − | * [[Documentation/How_Tos/Calc: Information functions|Information functions]] | + | * [[Documentation/How_Tos/Calc: Information functions|Information functions]] |
* [[Documentation/How_Tos/Calc: Functions listed alphabetically|Functions listed alphabetically]] | * [[Documentation/How_Tos/Calc: Functions listed alphabetically|Functions listed alphabetically]] | ||
* [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}} | * [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}} | ||
Revision as of 14:16, 26 February 2009
ISERR
Tests for an error value other than #N/A.
Syntax:
ISERR(value)
- Returns TRUE if value refers to or evaluates to an error value other than the Not Available error #N/A, and FALSE otherwise.
- Use the ISERROR function to test for any errors including #N/A.
Example:
ISERR(SQRT(-1))
- returns TRUE, because taking the squareroot of -1 is an error.
ISERR(C5)
- where C5 contains 123, returns FALSE, because 123 is not an error.
ISERR(NA())
- returns FALSE, because the error value #N/A is ignored by this function.
