How can I see how %*% is implemented?

get("%*%")

tells you that it is a primitive (i.e., implemented in C). The file
<R_HOME>/src/main/names.c directs you to do_matprod, in file
<R_HOME/src/main/array.c.

Martin

S??ren H??jsgaard <Soren.Hojsgaard at agrsci.dk> writes:

I would like to see how the matrix multiplication operator %*% is implemented (because I want to see which external Fortran/C routines are used). How can I do so?
Best
S??ren

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