====== Sign(number) ======
Category:  Number function

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=====Description=====
This function determines whether //number// is positive, negative, or zero.  If positive the value 1 is returned.  If negative, the value -1 is returned.  If //number// is 0, then 0 is returned.

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=====Arguments=====
^Argument^Type^Description^
|number|Number|The value being tested as positive, negative or zero.|
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**Return value type:**  Number (1, -1, or 0)

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=====Remarks=====
An expression that results in a numeric answer can be used as the //number// argument.  In this case, the result of the expression is tested.

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=====Examples=====

  sign(27) //Returns 1

  sign(-42) //Returns -1

  sign(0) //Returns 0

  sign(14*-3) //Returns -1

  sign(88 * 0) //Returns 0

  sign(12 * 3) //Returns 1