**Public Function SphereCalc( _
Optional ByVal vArea As Variant _
, Optional ByVal vRadius As Variant _
, Optional ByVal vVolume As Variant _
) As Variant**

**"Sphere Calculator" **

Calculate some property about spheres given the value of some other property.

**Examples:** SphereCalc(100, "CALC", Null) = 2.82094791773878
SphereCalc(100, Null, "CALC") = 94.0315972579594
SphereCalc("CALC", Null, 100) = 104.187941573561
SphereCalc("CALC", 3, Null) = 113.097335529233
SphereCalc(vRadius:=3, vArea:="CALC") = 113.097335529233

**See also:** CircleCalc Function

**Summary:** One of the arguments should contain a numeric value--the given value for that property. Pass the word "CALC" to the argument whose value is to be calculated and returned by this function. The other arguments should be missing or Null or non-numeric. Function returns Null if none of the arguments can be fixed up to a real or complex number (as defined by the IsComplex function). Otherwise, the function returns the value of the property whose argument was passed the word "CALC".

**vArea:** Surface area of the sphere.

**vRadius:** Radius of the sphere.

**vVolume:** Volume of the sphere.

**Note:** Function may return a complex number in the form of a string if the given dimensions are not consistent with the shape.

**Note:** The match on the word "CALC" is case-insensitive, so for example, "CALC" and "Calc" match each other. Copyright 1996-1999 Entisoft

Entisoft Tools is a trademark of Entisoft.