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    Re: HR-1 working re-creation and new questions
    From: Brad Morris
    Date: 2013 Feb 20, 00:26 -0500

    Hi Norm

    Welcome to NavList, where every error you make is recorded for all time!

    Yes, that's right, you cannot retract an error or correct it.  That's been the policy for a very long time.  Why?

    There have been, and continue to be, some spirited academic debates on list.  To go back later, and change the content of a post that is part of a debate, post debate, would destroy that conversation, making it unintelligible gibberish. 

    The list likes a Socratic method of instruction.  The give and take between knowledgeable listers is informative to all, even when one makes an error. 

    If you never post, you never make a mistake.  Lurkers who just read but never venture a post short change themselves.  There is much to gain by posting.

    The best way to learn is from your mistakes.  Since I make so many mistakes, I must be learning, right?  (snicker!) 

    Anyway, you made a mistake.  Best approach is to draw specific attention to it, admit it was a mistake,and move on.  Even some of the most luminous of luminaries of the NavList have done this. 

    There are no edits!


    On Feb 19, 2013 11:57 PM, "Norm Goldblatt" <ngold@pacbell.net> wrote:

    Vis a vis my previous post. Some equations like cos(x)=x are very easily solved using Mathematica. They have an Alpha version which will do these kinds of equations quite simply. It's downloadable to iPhone,Android and it is also available on the web. I believe the web based version is free. It's terrific at interpreting what you're trying to do. Sort of Siri for nerds. Try it.
    Finally, the illustrations I posted have some errors. I'd remove them, but don't know how!

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