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

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{{DISPLAYTITLE:FORMULA function}}
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{{Documentation/CalcFunc InformationTOC
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== ISERR  ==
 
== ISERR  ==
 
Tests for an error value other than '''#N/A'''.
 
Tests for an error value other than '''#N/A'''.
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=== Syntax: ===
 
=== Syntax: ===
 
<tt>'''ISERR(value)'''</tt>
 
<tt>'''ISERR(value)'''</tt>
  
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: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.
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: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.
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:Use the <tt>'''ISERROR'''</tt> function to test for any errors <u>including</u> <tt>'''#N/A'''</tt>.
  
 
=== Example: ===
 
=== Example: ===
 
<tt>'''ISERR(SQRT(-1))'''</tt>
 
<tt>'''ISERR(SQRT(-1))'''</tt>
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: returns <tt>'''TRUE'''</tt>, because taking the squareroot of -1 is an error.
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: returns <tt>'''TRUE'''</tt>, because taking the square root of -1 is an error.
  
 
<tt>'''ISERR(C5)'''</tt>
 
<tt>'''ISERR(C5)'''</tt>
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: returns <tt>'''FALSE'''</tt>, because the error value <tt>'''#N/A'''</tt> is ignored by this function.  
 
: returns <tt>'''FALSE'''</tt>, because the error value <tt>'''#N/A'''</tt> is ignored by this function.  
  
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{{SeeAlso|EN|
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* [[Documentation/How_Tos/Calc: ISERROR function|ISERROR]]
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* [[Documentation/How_Tos/Calc: ISNA function|ISNA]]
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* [[Documentation/How_Tos/Calc: NA function|NA]]
  
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=== See also: ===
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* [[Documentation/How_Tos/Calc: Information functions|Information functions]]
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'''[[Documentation/How_Tos/Calc: ISERROR function|ISERROR function]]''',
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'''[[Documentation/How_Tos/Calc: NA function|NA function]]'''
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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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* [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}}
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[[Category: Documentation/Reference/Calc/Information functions]]

Latest revision as of 13:13, 31 January 2024

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 square root 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.


See Also
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