The Chinese title is
“Mo gui shu xue”
which means “Devil mathematics”! Are they saying I’m evil? Apparently not. My Chinese informants tell me that in this context “Mo gui” should be read as “magical/powerful and to some extent to be feared” but not necessarily evil.
One thing I learned from researching this is that the Mogwai from Gremlins are just transliterated “Mo gui”! So don’t let my book get wet, and definitely don’t read it after midnight.