Wednesday: Drawlloween 2018: Ghost

It's a cheat, but I got home at eight, watched two episodes of CCS while eating dinner, and then spent at least an hour thinking about a math problem.  I think I have a solution, but it involves a series expansion and integral transforms.  It's not a pretty solution.

"The h in ghost is actually a little ghost waving to you."

• Terada-sensei is a creeper.
• Integral transforms.
• Uh....shut up!