In which file from the Linear Algebra github page are exp, log and ^ functions for matrix input?

I need to look at the Linear Algebra package implementation of these matrix functions, thus, if anyone could send me the link to the file in github, it would be much appreciated. Thanks in advance!

You can always ask julia where the function for a specific argument is defined:

julia> @which exp(rand(2,2))
     @ LinearAlgebra ~/.julia/juliaup/

Thank you very much!