The best way is reading manuals, following tutorials and trying by yourself: graphs like these are goals which everyone can achieve (perhaps with a more specific tool).īased on my limited experience, drawing these curves is a pain, and anyone who knows their mathematical functions can see it's a crude approximation.

The result is a manual drawing that seems like your graph: You can lock the layer with the original bitmap, add a new layer and drawing on it (perhaps using guidelines, if it helps): It's a very simple operation which involves just lines and text (using the proper fonts you can have symbols too), there are a lot of tutorials on the net and - not last - Inkscape provides extensions to plot functions (see examples here, there. You can trace the image using Path->Trace Bitmap, tweaking a little and updating the preview until you are satisfied, but usually tracing algorithms creates closed paths and for drawings like this the effect isn't optimal ( it's ugly!):Ī better solution, as evidenced by is drawing manually the graphs. Anyway.Īs a starting point, you can import the image in Inkscape (by dragging it in Inkscape or using File->Import), better if in a separate layer (so later you can hidden it): Please note that Inkscape can be used to draw graphs, but isn't a mathematical specific tool (like Octave, Gnuplot, etc), able to give you an accurate plot of the function.

The net is plenty of tutorials, and a good guide to start is Tavmjong Bah one, I've found it really useful. As written in the comments, it's simpler draw manually such a graph.

Inkscape trace