Hints and tips

--qalc (https://qalculate.github.io/manual/qalc.html) runs in the background
--standard operators: +, -, *, /, ^, sq,sqrt, etc.; also common natural language elements
--conversions (units of measure)
--currency exchange
--examples
>>“22^2 * pi” for area of circle
>>“64km to miles”, "3lb to kg"
>>"100 dollars to euros"

Detailed help: https://github.com/svenstaro/rofi-calc
