diff --git a/course_files/figures/rotation2.png b/course_files/figures/rotation2.png
index 655a7b3b16da0649ea51250383e02d2216b1f8cf..df72366f4f91ddaa2ecedf2cee587391fe0a2f2d 100644
Binary files a/course_files/figures/rotation2.png and b/course_files/figures/rotation2.png differ