[methods] add revision lecture notes

diff --git a/methods/inverse-functions.pdf b/methods/inverse-functions.pdf
index 5e5f1f853febb16d19229df0cc83f9b55181fe0e..6520f75f15c63f629d9bd0d3317bb0bb3947224d 100644 (file)
Binary files a/methods/inverse-functions.pdf and b/methods/inverse-functions.pdf differ