unum calculator

[theo]

https://stillwater-sc.github.io/universal/tutorials/ucalc-repl/

Here is a universal number calculator. I am looking for feedback from power users to flesh out which features would be most useful for a CLI tool like this.

The goal would be to make this a Linux utility in the style of dc -> bc -> uc

It is very equation-oriented, with lots of precision inspection and comparison tools.