I chose this image as an alternative for how the mathematician character could travel. This method of transportation is not as cute as the small legs in the other references, and adds a menacing appearance to the mathematician.
WHO KEEPS BUILDING THESE THINGS?: Creepy Hexapod Robot Can Transform, Roll Out In A Ball
Audi Robot by Sadgas VFX: so Audi who& idea of robotics ends at automotive diagnostics is making commercials saying that their car is futuristic and high tech like a robot that can play violin. Wait a minute, didn& Toyota already do that?