Hello again,

Question: Below is a screenshot of a 2D plot I can pull off in Mathcad. Does Smath studio have the ability to do similar? I was looking in the wiki and other examples, it seems as if they might be an option, but I can't find anything for defining X-Y plot limits. I think I can pull off the multiple lines with the System of Values smath command, and get each of those durometer lines at 12, 9, 6, 5, 4, and 3. But I am struggling with getting it to plot anything at all.

Mathcad:



What I have in Smath so far:



FYI, I use Sigma.comp in several places in the worksheet, and it returns expected values. So that definition and the linear interpolation is functioning properly. Thoughts?

Thanks,
Mike

Edited by user 15 May 2020 04:17:27(UTC)  | Reason: Not specified

Yes because in that one you seem missing, the boat.

If you attach the document I'll try to show how to invert axes.

Like this. Implicit plot mode used.

USC EB EXP LFD (uni).sm (131kb) downloaded 19 time(s).
USC EB EXP LFD (uni, page 3).pdf (156kb) downloaded 16 time(s).

very helpful. Again, the "thanks" button is just returning an error, but you have my thanks!

Thanks Jean / Viacheslav...from examples provided, how the X-Y Plot Plugin uses the arguments makes more sense. Simple test - My_Function: x-y^2 yields a simple parabola. It just plots whatever equation of a line is provided. High School math, simple but effective! Much more intuitive than how Mathcad does it (in my humble opinion). So used to doing it the Mathcad way, I am not seeing the obvious sometimes in Smath.

I definitely need to donate money to the project. I have converted several calculation sheets I used routinely with Mathcad. Well worth the investment in time since Mathcad 15 is no longer developed and Mathcad Prime is not worth the money. Maxima / Octave work well command line, but its hard to document your thought process or communicate it to someone not fluent with those languages. This is much preferred as an "Engineer's Notebook". Programming is fine for when you need to harness the CPU - compile a program in Fortran or C++ for large data sets - but I don't do that sort of thing much. This is perfect for learning and doing day-to-day calculation.

Large availability of open source plug-ins and connections to other open source tools like Maxima and Octave is most useful. I get Sagemath without having to install 20GB of stuff on my server, I get it with a 4MB + addons. Web Smath and Smath on Android smartphone is very impressive too. So good I feel like someone might buy this project from Andrey!

Edited by user 15 May 2020 05:08:27(UTC)  | Reason: Not specified

... added the missing link: explain,
to be meaningful, you have to scale the idx vector
on some user unit system, possibly wrt data.
Superb classroom & Engineering tool box.

Spline Matrix Tutorial METRIC Domain DUROMETER.sm (83kb) downloaded 23 time(s).