MathGroup Archive 2000

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Programming Trig Functions

  • To: mathgroup at
  • Subject: [mg23890] Programming Trig Functions
  • From: dehartre at (BeckyD)
  • Date: Thu, 15 Jun 2000 00:51:29 -0400 (EDT)
  • Organization: The Math Forum
  • Sender: owner-wri-mathgroup at

I am writing a program and I need to convert the ArcCosign from
radians to degrees.  I have this formula: ArcCos =
ArcTan(Sqrt(1-x*x)/x)*180/pi, but it won't work with negative numbers.
Any help?

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