[spec] add complex numbers notes to SAC file

diff --git a/physics/final.pdf b/physics/final.pdf
index ae315fbbf288aad63d618c67aeb3c425fd1ee4b6..58d19fb9dd44eef87e55e6258bac4183f2fb664d 100644 (file)
Binary files a/physics/final.pdf and b/physics/final.pdf differ