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

@@ Line 1: / Line 1: @@
-__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  ==
@@ Line 19: / Line 24: @@
 : where A1 contains <tt>'''"dog"'''</tt>, returns <tt>'''FALSE'''</tt>, because <tt>'''"dog"'''</tt> is text, not an error.
-=== See also: ===
+{{SeeAlso|EN|
-'''[[Documentation/How_Tos/Calc: ISERR function|ISERR]]''',
+* [[Documentation/How_Tos/Calc: ISERR function|ISERR]]
-'''[[Documentation/How_Tos/Calc: ISERROR function|ISERROR]]''',
+* [[Documentation/How_Tos/Calc: ISERROR function|ISERROR]]
-'''[[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]]}}
+[[Category: Documentation/Reference/Calc/Information functions]]