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Different solution with MathCAD - why?
Rank: Newbie
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Joined: 07/03/2019(UTC) Posts: 2 Location: Graz
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Hi I have tried to calculate this elliptic Integral with MathCAD v15 and SMath. But I get a Different solution with MathCAD - why? Thanks for help. WaLTER Eliptic.sm (18kb) downloaded 30 time(s).
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Rank: Advanced Member Groups: Registered, Advanced Member Joined: 13/01/2012(UTC) Posts: 2,654 Location: Italy Was thanked: 1340 time(s) in 879 post(s)
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Hello Walter, results are different because you are making another calculation: - numerator of the mathcad function is l (lowercase L) while in SMath is 1 (one);
- upper bound of the integral is e (Euler's number) in mathcad, while is 0.5 in SMath;
Edited by user 07 March 2019 13:46:36(UTC)
| Reason: marked as solved |
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Rank: Newbie
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Joined: 07/03/2019(UTC) Posts: 2 Location: Graz
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Thanks - I really did not see this.
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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: Walter316 Thanks for help. Always plot the integrand to avoid disaster.Simpson integrator ranges from exact to absolute scrap. In doubt, sanity vs Mathcad 11 adaptive. In your example: watch the low limit. Alternately, sanity Wolfram Integrator Jean Eliptic (1).sm (28kb) downloaded 18 time(s).
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