Software for generating waveforms.

[firewalker]

Is there an software for creating waveforms in order to be used in a manual etc?

Most of the time I use LtSpice with arbitrary voltage sources etc.  But for waveforms like the one bellow...



Alexander.

[Vtile]

Any math program should do? Matlab, Maxima, Maple ... Excel, OpenOffice Calc, GnuPlot what there is these. What they expect as a input data is what rules some of them out.

Your waveform in question is a variation of f(x)=tan(x)

..Or are you asking a program that allows you to draw by hand the waveform.

[Ampera]

Google! Just input your waveform you want to graph, and it will do it. Seriously.

https://support.google.com/websearch/answer/3284611?hl=en#plotting

[rstofer]

I use desmos.com for graphing but I haven't had success at saving a simple image.  I can save the entire .html but that is pretty much useless.

You can certainly do the same thing with wxMaxima and there are a couple of graphing formats.  The first attached image uses the 'inline' format.  The second image uses the gnuplot format and it is a separate window.  Both approaches have a lot of options for sizing, legends, labels and so forth.

[shteii01]

Hit Print Screen (if you have multiple windows open, hit ALT+Print Screen to capture active window), then Paste to your favorite graphics editing program (and no, I don't mean stupid M$ Paint), edit the pic, save the pic.

I recommend IrFanView graphics editing program.  If you need fancy, White Rabbit version for Photoshop might still float around the internetz.

I use desmos.com for graphing but I haven't had success at saving a simple image.  I can save the entire .html but that is pretty much useless.