How to find the implementation of Math. functions

I think i've heard mathematical functions of System.Math is implemented in external libraries written in a different language (maybe c/c++?) i'm curious if i can see those implementations and if can, i wanna know how.

there is https://source.dot.net/ which contains a lot of the .NET source

Start on https://source.dot.net. It those make internal calls into the runtime, search for those in https://github.com/dotnet/runtime

thanks but could you let me know how to search for internal calls in the runtime?

this is what i found but it has nothing about implementations

I use the search bar, and a bit of common sense

😭

i'm now afraid if they're written in assembly