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Excel SIGN Function

Excel SIGN function
Summary 

The Excel SIGN function returns the sign of a number as +1, -1 or 0. If number is positive, SIGN returns 1. If number is negative, sign returns -1. If number is zero, SIGN returns 0.

Purpose 
Get the sign of a number
Return value 
One if positive. Negative one if negative. Zero if zero.
Syntax 
=SIGN (number)
Arguments 
  • number - The number to get the sign of.
Usage notes 
  • If the number is in the range (-∞,0) SIGN(number) will return -1.
  • If the number is equal to 0 SIGN(number) will return 0.
  • If the number is in the range (0,∞)(number) SIGN will return 1.