Can you calculate Pi using a Solver?

12162019, 11:44 AM
(This post was last modified: 12162019 11:51 AM by EdS2.)
Post: #33




RE: Can you calculate Pi using a Solver?
So, indeed, I got my trusty Limited Edition HP15C out, set flag 8 (surprised to see it not documented on the back plate) and indeed it does a very solid job of being a complexnumber calculator, and is willing to have a go at solving Euler's identity for a value of pi.
It doesn't do terribly well, but it is willing. Using the Real() method: Solver input 1,4: result is 3.141591597 Solver input 2,3: result is 3.141583326 Using the ABS() method: Solver input 1,4: result is Error 8, aka 3.139172931 Solver input 2,3: result is Error 8, aka 3.141225122 (Edit: I see now that using Re<>Im or the I function puts the calculator into complex mode without any flag manipulation. I wonder if the unaware user might then be stuck in complex mode forever? I must read more manual.) 

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