Tim Cook wrote:
>  From the documentation:
> 
> "abs(A) Absolute value of A. If A is negative, returns -A otherwise 
> returns A."
> 
> er...that isn't what absolute value is.  absolute value of A is +A, if A 
> is negative, the absolute value is +A, not -A.  is the behaviour of POV 
> or the documentation incorrect?
> 
The definition of absolute value is as follows:

|x| is the distance between a given number (x) and 0 on a number line.

Thus:
abs(x) returns the MAGNITUDE of x, such that |x|=|-x|.  This value is 
always positive.

ADB

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