[PD] expression with arctn

[Csaba Láng]

looks like [atan2] works for me better than the expression you gave. indeed
i need all 4 quarters, what the expression does not indicate.

On Sun, Feb 2, 2020 at 9:01 PM IOhannes m zmölnig <zmoelnig at iem.at> wrote:

> Am 2. Februar 2020 20:52:14 MEZ schrieb "Csaba Láng" <langcsaba at gmail.com
> >:
> >thank you gentlemen, this is what I needed. never figured out that atan
> >is
> >arctn.
>
> in general, you might prefer `atan2` over `atan`, as this allows for all
> four quadrants.
>
> `[expr]` has both variants.
>
>
> mfg.hft.fsl
> IOhannes
>
>
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