Hello,
I am a satisfied SMath user and have recommended it to my engineering students. We have immediately stumbled over a huge problem. We are unable to show any meaningful graphs of real problems. With units, correct names or descriptions on axes, etc. I have tried everything, but once I don't see any errors, the graph still shows nothing. Then, there is an error, something like "Result is over max. positive number." I am just trying to display a sine wave voltage. Please, can somebody help me? I was googling extensively, but when there is a promising answer, it is very vague, just showing that it is possible without any help.

This is just my trials, but I have not been able to get any curves in the several graphs.



Edit: The image does not show. You can find it here: http://public.uli.cz/smath-plot.png

Thanks a lot
Olda

If you are working with vectors, you need to use vectorize().
If you are trying to plot, only Y axis values not enough.
You have to tell what are X values also.

Regards

You can animate it too.

sinewave.sm (6.69 KiB) downloaded 10 time(s).

Thank you very much!

Now, is there a reasonably simple way to get t [s] and U [V] to the axes? Or at least some description. I really love SMath, and I didn't need the plots because I am mostly doing some mechanical engineering and machine design linear calculations. But as soon as I showed that software to my more electrical engineering-focused students, they came up with this question. I have been using Mathcad (v14 and 15) for a long time, and there is no problem doing this task very easily. I have been really surprised by how big a problem it is for SMath.

Thanks a lot again
Olda