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One more about lens - Сообщения
How can we use here a Mathcad-block?
Lens-Mathcad-Block.sm (43 КиБ) скачан 203 раз(а).
See too
https://en.smath.com/forum/yaf_postst25212_Lens.aspx
Lens-Mathcad-Block.sm (43 КиБ) скачан 203 раз(а).
See too
https://en.smath.com/forum/yaf_postst25212_Lens.aspx
WroteHow can we use here a Mathcad-block?
Here the function rkfixed() can't process the incoming expressions correctly. The block has nothing to do with it, it does not perform detailed analysis of expressions.
This is a bug in the function. The function has not been tested for this case. I can't see what's wrong here right now.
Russia ☭ forever, Viacheslav N. Mezentsev
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Valery Ochkov 02.12.2024 15:44:00
This is not a solution of the rkfixed problem, just a little playing around with X-Y plot.
Here, an option of setting the aspect ratio of the axes to 1 would be good.
Файл не найден.Файл не найден.
Here, an option of setting the aspect ratio of the axes to 1 would be good.
Файл не найден.Файл не найден.
Martin Kraska
Pre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
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I am wondering if there is such a kind of Mathcad Prime odesolve for solving differential equations numerically also for SMath Studio somehow?
WroteI am wondering if there is such a kind of Mathcad Prime odesolve for solving differential equations numerically also for SMath Studio somehow?
Not yet, but will be soon!
Question - why is the answer meters squared, and not just meters?
WroteI am wondering if there is such a kind of Mathcad Prime odesolve for solving differential equations numerically also for SMath Studio somehow?
What's wrong with the existing solvers?
Russia ☭ forever, Viacheslav N. Mezentsev
WroteWroteI am wondering if there is such a kind of Mathcad Prime odesolve for solving differential equations numerically also for SMath Studio somehow?
What's wrong with the existing solvers?
Because odesolve in Mathcad Prime:
1. Do not require to rewrite the differential equation of a higher order into a system of first order odes
2. Determines whether a system is stiff or nonstiff and then is using accordingly the stiff numerical differential eq solver or nonstiff numerical differential eq solver
3. Can solve numerically a system of differential equations (whatever it's a system of first order differential eq or a system of higher order differential eq)
What are these existing numerical solvers of differential eq in SMath? What are the posibilities of SMath to solve numerically differential equations? Exist at least one solver that mimic the Mathcad Prime odesolve (i.e. the 3 points above menționed)?
Hi Cornel. For points 1 and 3, SMath can do what Mathcad can, and just a little more. Please, check the first post in this plugin. Can mathcad solve this odes?
RKA.sm (308 КиБ) скачан 301 раз(а).
RKA.pdf (931 КиБ) скачан 342 раз(а).
About point 2, one would have to review the documentation for the following plugins to see if they are capable, and to what extent, of doing what you are asking, and choose it for the solver in the SMath's solver block.
● [topic=17088]Intel ODE Solver Library[/topic]
● [topic=1918]DotNumerics[/topic]
● [topic=13809]SADEL[/topic]
● [topic=1970]Matlab C++ Math Library[/topic]
● [topic=17063]OSLO[/topic]
● [topic=17067]lsoda[/topic]
● [topic=1997]GNU Scientific Library (GSL)[/topic]
Best regards.
Alvaro.
RKA.sm (308 КиБ) скачан 301 раз(а).
RKA.pdf (931 КиБ) скачан 342 раз(а).
About point 2, one would have to review the documentation for the following plugins to see if they are capable, and to what extent, of doing what you are asking, and choose it for the solver in the SMath's solver block.
● [topic=17088]Intel ODE Solver Library[/topic]
● [topic=1918]DotNumerics[/topic]
● [topic=13809]SADEL[/topic]
● [topic=1970]Matlab C++ Math Library[/topic]
● [topic=17063]OSLO[/topic]
● [topic=17067]lsoda[/topic]
● [topic=1997]GNU Scientific Library (GSL)[/topic]
Best regards.
Alvaro.
WroteHow can we use here a Mathcad-block?
Lens-Mathcad-Block.sm (43 КиБ) скачан 203 раз(а).
See too
https://en.smath.com/forum/yaf_postst25212_Lens.aspx
Hi. dsol can solve it with this setup:

RKA-Lens.sm (179 КиБ) скачан 188 раз(а).
I also use the Martin's setup for the plot.
Best regards.
Alvaro.
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Hi. The screen. I also simplify a little the calculations.
spherical aberration.sm (26 КиБ) скачан 274 раз(а).

Best regards.
Alvaro.
spherical aberration.sm (26 КиБ) скачан 274 раз(а).

Best regards.
Alvaro.
3 пользователям понравился этот пост
francesco rapuano 10.12.2024 23:05:00, NDTM Amarasekera 10.12.2024 23:16:00, Вячеслав Мезенцев 10.12.2024 23:19:00
WroteHi Valery. This is a way.
...
spherical aberration.sm (15 КиБ) скачан 204 раз(а).
Best regards.
Alvaro.
Very elegant solution
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Alvaro Diaz Falconi 11.12.2024 06:18:00
Martin Kraska
Pre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
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Alvaro Diaz Falconi 11.12.2024 06:18:00
WroteVery elegant solution
Gracias Oscar! Pero espérate tantito nomás para que veas lo que puede hacer un doc alemán.
Thanks Oscar! But wait a little longer so you can see what a German doctor can do.
Best regards.
Alvaro.
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Oscar Campo 11.12.2024 12:09:00
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