Can you calculate Pi using a Solver?

12172019, 01:22 AM
Post: #36




RE: Can you calculate Pi using a Solver?
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Hi, Werner: (12162019 12:31 PM)Werner Wrote:(12142019 12:56 AM)Valentin Albillo Wrote: Code for the HP71B, where FNROOT (Find Root) is the "official" HP71B's "Solver": Because that's not much use of a Solver as the OP intended it, i.e.: to solve some equation which isn't explicitly solvable (i.e: the variable can't be isolated, e.g.: cos(x)x=0), doesn't involve trigs, and of course doesn't feature Pi explicitly in the equation. Your proposed equation fails in those regards. For starters, Gamma(1/2) is a *constant*, namely √Pi. You can call it "Gamma(1/2)" or you can call it "Pepe" but it's still just √Pi. So, your equation becomes: √Pi  SQRT(X) = 0 → √x = √Pi → x = Pi and not only does it have the variable x isolated and Pi included in the equation but it's also as utterly trivial as it gets, and probably this is not what the OP was asking for. Anyway, thanks for your question and most of all, for your interest. And if you don't own an HP71B but would like to, there are at least two excellent, free Emu71 out there (running in MSDOS, DOS console in Win/16/32, or fullGUI Win/16/32/64 or under DOSEMU in any operating system, Android included and even some electronicink eBook readers) which you can download. For free. Best regards. V. All My Articles & other Materials here: Valentin Albillo's HP Collection 

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