# Cholfact not defined

This is a really dumb question for someone who has been using Julia as long as I have.

I see reference (and definition) of the function cholfact but I keep getting the error
`cholfact not defined`
even when I load LinearAlgebra and all the obvious packages I can think of.
Is there a general way to look up which package a function belongs to ?

Don’t you just want `cholesky`?

Thanks. I saw a specific example that I wanted to copy that had exactly what I needed (including sparse matrices). I didn’t know whether the standard cholesky has all the same functionality.

I guess I am asking for two reasons, first because of this example, and second to know in general how to look up what package a function belongs to (or find out if it has been deprecated)