[Sophira]

My favourite desktop calculator so far is Qalculate![0] for similar reasons, and I basically never have the keypad shown. It uses libqalculate, which also provides an executable version that's usable on the console, which I also use often.

It's incredible and I love it.

[0] https://qalculate.github.io/

[chacha21]

Thanks to Show HN I will be given tons of links to softwares I would never have found by myself :-)

[tejohnso]

I'm also using Qalculate! and never had an issue with it. Maybe I don't require complex enough calculations but whenever I want some quick basic math, it's a quick keybinding away and there's a history screen below the input screen so sometimes I don't even have to type anything to see the answer.

[sprash]

This also has a nice command line interface for those who prefer the terminal.