Re: Maximum distance to launch ground tracks

From: Cees Bassa (
Date: Mon Apr 30 2001 - 02:08:04 PDT

  • Next message: Patrick JL: "Re: Can someone ID this?"

    Hello list,
    At 23:00 29-4-01 , Jonathan T Wojack wrote:
    >I'm not familiar with the term "arccos".  How does it differ from the
    >mathematical function cosine?
    Arccos is the name of reverse function of the cosine: arccos(cos(x))=x
             Cees Bassa
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