Documentation fix regarding atan2

["Andrew Maclean" <andrew.amaclean@xxxxxxxxx>]

In Table 9.4 of the documentation atan2 is described as follows:

atan2(x, y)

inverse tangent of x/y

 

I am sure it should read as:

atan2(y, x)

inverse tangent of y/x

 

This looks to be the standard C++/c atan2(y,x) function.

 

You can easily test this:

If y = 2, x = 1, then degrees(atan(y/x)) =63.4 but if we proceed according to the documentation; degrees(atan2(x,y))=degrees(atan2(1,2))=25.6 which is not the same as degrees(atan(y/x)).

So it must be degrees(atan2(y,x))=degrees(atan2(2,1))=63.4.

 

Thanks

   Andrew

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Andrew J. P. Maclean
Centre for Autonomous Systems
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