Difference between revisions of "Documentation/How Tos/Calc: ISNA function"

Latest revision as of 13:18, 31 January 2024

FUNCTIONS

Tests for the #N/A (Not Available) error value.

ISNA(value)

Returns TRUE if value is or refers to the #N/A (Not Available) error and FALSE otherwise.

ISNA(NA())

returns TRUE, because NA() returns the #N/A error.

ISNA(1/0)

returns FALSE, because 1/0 is a #DIV/0! error, not a #N/A error.

ISNA(A1)

where A1 contains "dog", returns FALSE, because "dog" is text, not an error.

See Also

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-__NOTOC__
+{{DISPLAYTITLE:ISNA function}}
+{{Documentation/CalcFunc InformationTOC
+|ShowPrevNext=block
+|PrevPage=Documentation/How_Tos/Calc:_ISLOGICAL_function
+|NextPage=Documentation/How_Tos/Calc:_ISNONTEXT_function
+}}__NOTOC__
 == ISNA  ==
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 : where A1 contains <tt>'''"dog"'''</tt>, returns <tt>'''FALSE'''</tt>, because <tt>'''"dog"'''</tt> is text, not an error.
-{{Documentation/SeeAlso|
+{{SeeAlso|EN|
 * [[Documentation/How_Tos/Calc: ISERR function|ISERR]]
 * [[Documentation/How_Tos/Calc: ISERROR function|ISERROR]]