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 qu

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.