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<div style="font-size:30px">'''SIGN(n)'''</div><br/>
<div style="font-size:30px">'''SIGN(Number) '''</div><br/>
*<math>n</math> is any real number.
*<math>Number</math> is any real number.
**SIGN(), returns the sign of a number.
==Description==
==Description==
*This function gives the sign of a number.
*This function gives the sign of a number.
*In <math>SIGN(n)</math>, <math>n </math>, is any real number.
*In <math>SIGN(Number)</math>, <math>Number </math>, is any real number.
*Suppose the <math>n</math> value is a positive number ,then this function will return 1.
*Suppose the <math>Number</math> value is a positive number ,then this function will return 1.
*When <math>n</math> is a negative number, this function shows -1.
*When <math>Number</math> is a negative number, this function shows -1.
*Also <math>n</math> is zero, this function shows 0.
*Also <math>Number</math> is zero, this function shows 0.
*This function will shows the result as error when the <math>n</math> value is non-numeric.
*This function will shows the result as error when the <math>Number</math> value is non-numeric.
*Also when we are giving the <math>n</math> value with Complex number, then it will consider only the real part of a Complex number.
*Also when we are giving the <math>Number</math> value with Complex number, then it will consider only the real part of a Complex number.
==Examples==
==Examples==
# =SIGN(0) = 0
# =SIGN(0) = 0
# =SIGN(0.0000001) = 1
# =SIGN(0.0000001) = 1
==Related Videos==
{{#ev:youtube|v=7VHwdmIUmw8|280|center|SIGN}}
==See Also==
==See Also==
==References==
==References==
*[http://en.wikipedia.org/wiki/Sign_%28mathematics%29 Sign]
*[[Z_API_Functions | List of Main Z Functions]]
*[[ Z3 | Z3 home ]]