add practice exam spreadsheet

diff --git a/methods/calculus-ref.pdf b/methods/calculus-ref.pdf
index 06fb92880bc68c5d098cbadd65499cc2c61f7e45..fa940f3b812ad341235efe0cef2e4f2921d35634 100644 (file)
Binary files a/methods/calculus-ref.pdf and b/methods/calculus-ref.pdf differ