kalk VS insect

There's also https://kalker.xyz. Not as powerful, but convenient syntax

I have been waiting for an alternative to rug for kalker for a long time now. I think this might be it soon.

For simple use-cases, I made a program called kalker which handles syntax like f(x) = 2ax(x + 2)(a - sqrt2) with syntax highlighting in the REPL and auto completion to mathematical symbols. In many cases you can write math like you would write it on paper. Right now I'm about to release support for vectors, matrices and numerical root-finding.

Apparently this replaces https://github.com/sharkdp/insect

You might like https://insect.sh/ ;)

For the record I use insect.

https://github.com/sharkdp/insect seems to be somewhat similar, but it's mostly for physical units. However, it's the only opensource one that is embeddable.

Insect: https://github.com/sharkdp/insect

It is a bit slow but has decent features, including some physical units support.

I set up Tilda (or another Guake equivalent; I tried a bunch of them and can’t remember on which I settled in the end) to run it automatically when a terminal is opened, when pressing Scroll Lock. It’s quite neat: when I need to do a quick calculation, I just hit Scroll Lock, which spawns a drop down terminal with the focus; then type whatever I want to calculate; then control-D to dismiss the drop down terminal and I am back in whatever I was doing without moving either hand off the keyboard.

I do more or less the same thing on my Mac with Alfred.

I'm in the same boat and will pay for Kagi, though I have a different interaction with a search engine and thought you might like the counterpoint. Notably, I don't use Google for most of what you described:

Translation: I use DeepL instead (google is doing poorly on Asian languages)

Conversion: not having much need for imperial but I use this for all unit conversion (though usually directly in my terminal): https://insect.sh/

Wikipedia: if I type Wikipedia+something my browser automatically use the wiki engine (chrome can do that too)

Word definition: on OSX I long press on the trackpad and the definition pops up (across languages, translation too for single words)

Lyrics: Spotify show them now! (admittedly that's a recent feature)

insect.sh goes up to about 109 × 1015.