- DC to convert between bases and if you like RPN. - Calc it's better if you want to cover complex numbers: https://github.com/lcn2/calc https://github.com/lc

- DC to convert between bases and if you like RPN. - Calc it's better if you want to cover complex numbers: https://github.com/lcn2/calc https://github.com/lcn2/calc - Qalc from libqalculate in order to solve some equations in legacy machines. It's lighter and smaller than Maxima, but not as complete. - - - Maxima for anything else, the biggie one. This will cover calculus. Gnuplot will work fine as a plotter for the previous tools.