Difference between revisions of "Documentation/How Tos/Calc: ISERR function"
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<tt>'''ISERR(value)'''</tt> | <tt>'''ISERR(value)'''</tt> | ||
| − | :Returns <tt>'''TRUE'''</tt> if value refers to or evaluates to an error value other than the Not Available error <tt>'''#N/A'''</tt>, and <tt>'''FALSE'''</tt> otherwise. | + | :Returns <tt>'''TRUE'''</tt> if <tt>'''value'''</tt> refers to or evaluates to an error value other than the Not Available error <tt>'''#N/A'''</tt>, and <tt>'''FALSE'''</tt> otherwise. |
| + | |||
| + | |||
| + | :Use the <tt>'''ISERROR'''</tt> function to test for any errors <u>including</u> <tt>'''#N/A'''</tt>. | ||
Revision as of 06:25, 6 December 2007
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.
