Little explorations with HP calculators (no Prime)

03252017, 08:17 AM
(This post was last modified: 03252017 08:19 AM by pier4r.)
Post: #26




RE: Little explorations with the HP calculators
(03242017 10:54 PM)Dieter Wrote: I think a calculator is the very last thing required here. As always, first comes the mental work to create the formula or the model, but to compute the final number one needs a calculator most of the time. Quote:Numeric solver? The radius can be determined with a simple closed form solution. Take a look at the diagonal through B, O and D which is 6√2 units long. I used the numeric solver because instead of grouping r on the left, I just used the formula of one step before  the one without grouping  to find the value. Anyway one cannot just use the diagonal because the picture is well done, one has to prove to himself that O is on the diagonal (nothing difficult, but required), otherwise it may be a step taken for granted. Wikis are great, Contribute :) 

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