Maxima plot - How to add point in maxima plot - Сообщения
#1 Опубликовано: 22.01.2026 10:52:55
Hi, i would like to add some points to 3D plot. How can I do that?
And can i somehow make the plot smooth without using smaller steps in vectors?
Kompresibilita_3D.sm
Thanks for answers,
Tomas
And can i somehow make the plot smooth without using smaller steps in vectors?
Kompresibilita_3D.sm
Thanks for answers,
Tomas
Отредактировано 22.01.2026 10:54:05
#2 Опубликовано: 22.01.2026 14:08:14
You could try to create a mesh of triangles or quadrilateral objects. Then you are free to use a problem-adjusted surface parametrization.
Martin KraskaPre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
#3 Опубликовано: 27.01.2026 21:55:32
Hi,
thanks for your answer. I have another question. I´m trying to make graph of water density, but the axes are not right, what is wrong?
hustota vody.sm
Thanks,
Tomáš
thanks for your answer. I have another question. I´m trying to make graph of water density, but the axes are not right, what is wrong?
hustota vody.sm
Thanks,
Tomáš
#4 Опубликовано: 28.01.2026 00:09:04
This is probably due to the "visual" indexing in the matrix.
Rows in a matrix are increasing top-down, whereas values in y are increasing bottom-up.
Rows in a matrix are increasing top-down, whereas values in y are increasing bottom-up.
Martin KraskaPre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
#5 Опубликовано: 28.01.2026 08:23:58
Thanks you very much! That helped.
But if i want to make axes right i have to switch x and y axes in elevation grid command. I don’t know why.
hustota vody.sm
Is there any sheet of something like that, where I can fing all comands for plots? And how can I write them, because commands that I used, I copied from some file I found.
Thanks for answers,
Tomáš
But if i want to make axes right i have to switch x and y axes in elevation grid command. I don’t know why.
hustota vody.sm
Is there any sheet of something like that, where I can fing all comands for plots? And how can I write them, because commands that I used, I copied from some file I found.
Thanks for answers,
Tomáš
#6 Опубликовано: 28.01.2026 17:30:00
See topic starter https://smath.com/en-US/forum/topic/cnc5Xp/Maxima-Plugin. I added some references there.
Martin KraskaPre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
#7 Опубликовано: 28.01.2026 19:33:40
That is awesome!
Thanks,
Tomáš
Thanks,
Tomáš
#8 Опубликовано: 06.02.2026 11:03:04
Hi,
how can I add point B to plot? When I tried I make point or plot, but not both of them.
kriticky_bod.sm
Thanks for answers,
Tomas
how can I add point B to plot? When I tried I make point or plot, but not both of them.
kriticky_bod.sm
Thanks for answers,
Tomas
#9 Опубликовано: 06.02.2026 13:25:26
Seems to be related to the negative temperature range in the elevation_grid command.
Martin KraskaPre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
#10 Опубликовано: 10.02.2026 07:29:28
Thanks for answer,
I tried to fix it and I ended with this. Still can t plot graph and point together.
kriticky_bod.sm
What should I do now?
Tomáš
I tried to fix it and I ended with this. Still can t plot graph and point together.
kriticky_bod.sm
What should I do now?
Tomáš
#11 Опубликовано: 10.02.2026 15:54:04
You still have a negative h value (temperature difference). Reverse this (and also reverse the matrix). Then it should work.
Martin KraskaPre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
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