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

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== ISNUMBER  ==
 
== ISNUMBER  ==
 
Tests if a cell contains a number.
 
Tests if a cell contains a number.
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=== Syntax: ===
 
=== Syntax: ===
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: <tt>'''ISNUMBER'''</tt> currently (OOo2.3) considers the logical values <tt>'''TRUE'''</tt> and <tt>'''FALSE'''</tt> as numbers. See '''Issues''' below.
 
: <tt>'''ISNUMBER'''</tt> currently (OOo2.3) considers the logical values <tt>'''TRUE'''</tt> and <tt>'''FALSE'''</tt> as numbers. See '''Issues''' below.
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=== Example: ===
 
=== Example: ===
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: where D5 contains <tt>'''99'''</tt>, returns <tt>'''TRUE'''</tt>, because D5 contains a  number.
 
: where D5 contains <tt>'''99'''</tt>, returns <tt>'''TRUE'''</tt>, because D5 contains a  number.
  
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=== Issues: ===
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* <tt>'''ISNUMBER(A1)'''</tt> where A1 is a logical value, returns <tt>'''TRUE'''</tt>.  This behavior is not compatible with other competing spreadsheets.<BR>  See {{bug|58572;84266}}.
  
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=== See also: ===
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{{SeeAlso|EN|
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'''[[Documentation/How_Tos/Calc: ISTEXT function|ISTEXT function]]''',
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* [[Documentation/How_Tos/Calc: ISTEXT function|ISTEXT]]
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'''[[Documentation/How_Tos/Calc: ISLOGICAL function|ISLOGICAL function]]''',
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* [[Documentation/How_Tos/Calc: ISLOGICAL function|ISLOGICAL]]
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'''[[Documentation/How_Tos/Calc: ISBLANK function|ISBLANK function]]''',
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* [[Documentation/How_Tos/Calc: ISBLANK function|ISBLANK]]
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'''[[Documentation/How_Tos/Calc: ISERROR function|ISERROR function]]''',
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* [[Documentation/How_Tos/Calc: ISERROR function|ISERROR]]
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'''[[Documentation/How_Tos/Calc: ISFORMULA function|ISFORMULA function]]'''
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* [[Documentation/How_Tos/Calc: ISFORMULA function|ISFORMULA]]
  
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'''[[Documentation/How_Tos/Calc: Information functions|Information functions]]'''
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* [[Documentation/How_Tos/Calc: Information functions|Information functions]]
  
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* [[Documentation/How_Tos/Calc: Functions listed alphabetically|Functions listed alphabetically]]
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=== Issues: ===
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* [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}}
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* <tt>'''ISNUMBER(A1)'''</tt> where A1 is a logical value, returns <tt>'''TRUE'''</tt>.  This behaviour is not compatible with other competing spreadsheets. See [http://qa.openoffice.org/issues/show_bug.cgi?id= issue 84266].
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[[Category: Documentation/Reference/Calc/Information functions]]

Latest revision as of 13:23, 31 January 2024

ISNUMBER

Tests if a cell contains a number.

Syntax:

ISNUMBER(value)

Returns TRUE if value is a number or logical value and FALSE otherwise.


ISNUMBER currently (OOo2.3) considers the logical values TRUE and FALSE as numbers. See Issues below.

Example:

ISNUMBER(123)

returns TRUE.

ISNUMBER(“dog”)

returns FALSE.

ISNUMBER(D5)

where D5 contains 99, returns TRUE, because D5 contains a number.

Issues:

  • ISNUMBER(A1) where A1 is a logical value, returns TRUE. This behavior is not compatible with other competing spreadsheets.
    See Issue 58572;84266 .


See Also
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