This is a port of Chat Calc by RTTV to Minecraft 1.21.11+. I created it because Chat Calc by Rime hasn't been updated for some time now and I really enjoyed using it (it is not a fork of this as I don't know Kotlin O.O).

As of now this is just a port without any features added so everything said below is not my work; I only made it function on the latest Minecraft versions.

This mod is best way to integrate a calculator into Minecraft (at least I think that). You can just type your expression like 2^8 into the chat and it will display the result in a little tooltip above and replace the expression when you press tab.

You can of course do much more complex calculations like for example
arccos((1*4+2*5+3*6)/(sqrt(1^2+2^2+3^2)*sqrt(4^2+5^2+6^2))). The mod also supports functions and constants. You can define them via <name>=<value>, <name>(x)=<function> (with parameters separated by semicolons), remove them if leaving the value/function side empty and see the active ones using the constants? and functions? keywords.

You can also configure the mod with a few options in the chat. Type ? and press tab to see the available options. To get the description of an option, type <option>? and to set it <option>=<value> and press tab afterwards.