Difference between revisions of "Manuals/calci/ISNUMBER"

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[http://en.wikipedia.org/wiki/Is_functions Is functions]
[http://en.wikipedia.org/wiki/Is_functions Is functions]
*[[Z_API_Functions | List of Main Z Functions]]
*[[ Z3 |  Z3 home ]]

Revision as of 06:20, 14 March 2017


  • is any number.


  • This function is one of the group in .
  • The is also known as data information functions, data inspection functions or data-testing functions.
  • is used to test given value is number or not.
  • This function gives the result as TRUE when the given value is the number otherwise this function gives th result as FALSE.
  • This function will not convert any numbers from text.
  • For e.g. "20" is normally converted as a number 20. But in ISNUMBER("20") will return FALSE, because "20" will not convert in to number.


  • The syntax is to find whether the given data is a number in ZOS is .
    • is any number.
  • For e.g.,ISNUMBER(log(20)),ISNUMBER(sum(10,20,30,40,50))


  1. =ISNUMBER(2) = TRUE
  2. =ISNUMBER(0) = TRUE
  3. =ISNUMBER(-100) = TRUE
  4. =ISNUMBER(y) = NULL
  6. =ISNUMBER("17") = TRUE

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Is functions