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Solving a trigonometric equation
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Joined: 28/09/2014(UTC) Posts: 18
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Dear all, I try to solve a simple trigonometric equation with "solve", but I don't find results in some situation and I don't understand why. SINE.sm (9kb) downloaded 12 time(s).Any help is appreciated. Thank to all
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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Three things here: 1. All maths fncts are Padé rational fraction. on small range of the argument, then processed for extending. 21 floating 18 considered trues conserved 15 [standard tables]. 2. '0' is undefined generally. 3. 5*π doctored solve bloc is not fool proof all/any applications SINE.sm (12kb) downloaded 17 time(s).
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1 user thanked Jean Giraud for this useful post.
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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... sanity check from Casio on line calculator.
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1 user thanked Jean Giraud for this useful post.
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Joined: 28/09/2014(UTC) Posts: 18
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Dear Jean, thank you for the answers. To be sure if I understand right: the mistakes are from the approximation of the functions. I apoligize, but I don't understand your "sanity check". Could you explain a little bit? Thank you
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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Originally Posted by: coeur_de_lion Dear Jean, thank you for the answers. To be sure if I understand right: the mistakes are from the approximation of the functions. I apoligize, but I don't understand your "sanity check". Could you explain a little bit? Thank you Often, in advanced works, we have to check [sanity check] results. Casio [Keisan] on line calculator(sss..] is Bible. As the matter example was Bessel: here is the document. Link to Bessel-Keisan in turquoise. Cheers ... Jean. Bessel JY.sm (86kb) downloaded 19 time(s).
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