"Tom Lake" <tlake@[EMAIL PROTECTED]
> wrote:
> She:kon/Greetings
> I'm trying to ****t some Zeno programs over to BASIC and I'm stuck on the
> Zeno function ARCTANXY(x,y). According to the Zeno manual,
> it should be equal to ATN(y/x) when x and y are both non-zero.
> I created a BASIC function that does that but the results don't match
> the Zeno output. Does anyone here know exactly what calculation to
> use for ARCTANXY? TIA
>
> Sken:nen/Peace
> Tom Lake
> Information Systems Administrator
> St. Regis Mohawk Tribe Environment Division
> 412 State Route 37
> Akwesasne, NY 13655
> (518) 358-5937 Ext. 117
> e-mail: tom_lake@[EMAIL PROTECTED]
> Website: http://www.srmtenv.org
Hi Tom. I don't know about Zeno BASIC, but appears that ARCTANXY() is an
implementation of the ATN2(x,y) function. The difference
between ATN(n) and ATN2(x,y) is that the ATN2(x,y) takes the actual X,Y
offsets and returns the true angle resolved within the full
360 degree circle. You can download ATN2.ZIP in any of several BASIC
flavors from my website, which contains a function to calculate
ATN2(x,y).
--
Judson McClendon judmc@[EMAIL PROTECTED]
(remove zero)
Sun Valley Systems http://sunvaley.com
"For God so loved the world that He gave His only begotten Son, that
whoever believes in Him should not perish but have everlasting life."
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