If the problem is how to display vectors then the Maxima draw package might be an option. It is part of the portable distribution and is documented in the interactive handbook and in the german pdf handbook.
Bathe E 6-6 Deformationsgradient am Scheibenelement.sm(102.96 KiB) downloaded 550 time(s).
Martin KraskaPre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx