DISCWORLD APPLIED MATHEMATICIANS

Big Al Onestone is (a) apocryphal and (b) a mathematical physicist, which is not the same thing at all.

Ptaclusp IIa, Ptaclusp IIa, Ptaclusp IIa, and Ptaclusp IIa are accountants, which is also not the same thing at all, but they have studied algebra and calculus. And quantum accountancy. Then there’s Ptaclusp IIb, Ptaclusp IIb, Ptaclusp IIb, Ptaclusp IIb, and Ptaclusp IIb

Reforgule of Krull who theorized that the Disc revolves once every 800 days to distribute the weight fairly upon its supporting elephants.

Didactylos. Ephebian philosopher who calculated that the sun travels twice as fast as light, making it a tachyon.

Leonard of Quirm scrapes in here because of his evident mastery of celestial mechanics when putting the Kite into orbit around Discworld en route to Cori Celesti [THE LAST HERO]