"imaginary number"

Posters

£9.99

Poster 8" x 12" (20x30 cm)Funny math motif with Pythagoras joke

By TheFuture

£16.99

Poster 24" x 24" (60x60 cm)Zeta - Re=1/2 - with coordinates - lines - poster

By coonlight

£9.99

Poster 8" x 8" (20x20 cm)The insomniac technique

By LAGUENY