Rank: Guest
Groups: Registered
Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
|
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
|
|
|
|
Rank: Advanced Member Groups: Registered
Joined: 17/01/2013(UTC) Posts: 296 Location: Khabarovsk, Russia Was thanked: 151 time(s) in 107 post(s)
|
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)
| Reason: Not specified |
Best regards, Mike Kaganski |
1 user thanked mikekaganski for this useful post.
|
|
|
Rank: Guest
Groups: Registered
Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
|
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).
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.