Can I get tan^-1 from tan

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#807

From: Bobby Sixkiller
Date: Sat, 30 Dec 1995 00:00

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I am working on a computer program in c, and I need to find the angle of a 
given line. I have access to a tan() function which takes an angle, and 
returns the tan of that angle. The problem I'm facing is that I have 
the tan of the angle already(opposite and adjacent values) but dont know 
what the angle is.. thats what I want to find. I know that on a calculator 
I could just go tan ^-1 opposite/adjacent to get the angle, but I dont 
have acces to an inverse of tan function. Can I get the inverse of tan by 
using only the tan() function and the opposite and adjacent 
values.....please mail me any ideas!


thanks

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From: ryangall@gpu.srv.ualberta.ca (Bobby Sixkiller)
Subject: Can I get tan^-1 from tan
Date: 1995/12/30
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