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  • is any number.


  • function checks if the given number is Complex or not.
  • This function is one of the group in .
  • The is also known as data information functions, data inspection functions or data-testing functions.
  • This function is gives the result as TRUE when the given number is a Complex number otherwise this function will return the result as FALSE.
  • A complex number is a combination of a real and an imaginary number.
  • A number which is positive or negative, rational or irrational or decimals are called real numbers.
  • An Imaginary number is a number that when squaring it gives a negative result.
  • For e.g. . Because a negative times a negative is positive.
  • A complex number is a number is in the form , where and are real numbers and is the imaginary unit. Where


  1. ISCOMPLEX(1+ⅈ3) = true
  2. ISCOMPLEX(7) = false
  3. ISCOMPLEX("9-i7") = false

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Is functions