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 Description  | 
 Log() returns the natural logarithm of a number.  | 
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 Syntax  | 
 Log(number)  | 
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 Parameters  | 
 number A number, or an expression that evaluates to a number  | 
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 Return Value  | 
 A natural logarithm.  | 
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 Examples  | 
 NatLog(radians)=begin retval = Log(radians + Sqrt(radians * radians + 1)) end  | 
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 Comments  | 
 The natural logarithm is the logarithm to the base e. The constant e is approximately 2.718282.  |