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1. Maxima 'solve' OK but very poor accuracy 2. Maxima 'Solve' not implemented Smath 5346 Though I can't compare with Mathcad Prime essentially Maxima, I doubt Mathcad would not spit better accuracy than Smath/Maxima. As it looks, 'solve' is implemented with a too low TOL [Tolerance]. Jean 
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Joined: 17/01/2013(UTC) Posts: 296   Location: Khabarovsk, Russia Was thanked: 151 time(s) in 107 post(s)
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Just a side note (unfortunately, unhelpful). You keep using word "Maxima" in many places where it apparently doesn't apply (another example is here: http://en.smath.info/for...424_Maxima-X-Y-plot.aspx). It looks like you mean that standard "solve" (all small letters) is a Maxima function. No, it is not, it is SMath own in-built solve(). In another post, you write: Originally Posted by: Jean Giraud  What I understand from Smath Studio: it is a stand alone big tool, a math tool.
2MB user interface working from associated plugins [total size 5346 = 235 MB].
Looks like you suppose that SMath itself is just a "shell" (interface) to its plugins. Well, that's not strictly true, these 2MB include its own load of math  Edit: maybe you'll find nonlinear solvers plugin useful? It gives correct answers, though by carefully selecting ranges; you may directly control output precision.  Edited by user 07 April 2016 10:17:28(UTC)
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Best regards,
Mike Kaganski |
 1 user thanked mikekaganski for this useful post.
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Thanks Mike for Brent, I know about that stuff [Ref: Mathcad 11] A much better candidate is the universal "Polyroots". My remark cautionned Smath users about inaccuracy of "solve". Brent("1:function", "2:condition", "3:condition", "4:condition"  - Brent's root-finding method of function "1:function", giving a couple of delimiters "2:condition" and "3:condition"; calculation have at least "4:condition" function precision. Jean   Integrate Quadratures Legendre Polyroots.sm (24kb) downloaded 29 time(s).
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