diff --git a/w4-complex-lecture.xopp b/w4-complex-lecture.xopp index 8b775c1..7a0e97a 100644 Binary files a/w4-complex-lecture.xopp and b/w4-complex-lecture.xopp differ diff --git a/w4-complex-solutions.pdf b/w4-complex-solutions.pdf new file mode 100644 index 0000000..680a181 Binary files /dev/null and b/w4-complex-solutions.pdf differ