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ATAN function with two ARGS [message #20289]

Mon, 05 June 2000 00:00

Ben Tupper
Messages: 186
Registered: August 1999

Senior Member

Hello,

I have bumped into a conflict between the IDL documentation and IDL output.

From the IDL (5.2) docs, the optional argument Y is described as follows:

-------START
Y
An optional argument.

If this argument is supplied, ATAN returns the angle whose tangent

is equal to Y/X. If both arguments are zero, the result is undefined.

------END

So I tried the following...

IDL> help, ATAN(0.0,0.0)
<Expression> FLOAT = 0.00000

Uhoh! Is it me, or is it Monday morning syndrome?

Ben

--
Ben Tupper

Bigelow Laboratory for Ocean Science
tupper@seadas.bigelow.org

pemaquidriver@tidewater.net

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[Message index]

		ATAN function with two ARGS By: Ben Tupper on Mon, 05 June 2000 00:00
		Re: ATAN function with two ARGS By: davidf on Tue, 06 June 2000 00:00
		Re: ATAN function with two ARGS By: Paul Hick on Tue, 06 June 2000 00:00

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