Stage 31 · Complex Numbers

31.2.2 A Complex Number Is Just an Arrow

31.2 Drawing Complex Numbers on a Plane: the Complex Plane

Point 2 of 4

31.2.2 A Complex Number Is Just an Arrow

Core idea

Picture this: the arrow pointing from the origin out to that point looks exactly like a vector from the last stage — that's the geometric identity of a complex number

Module goal. Borrowing the coordinate plane from the last stage, we give every complex number its own "address," turning it from a symbol into a visible point and arrow
eastmath.com · 31.2 Drawing Complex Numbers on a Plane: the Complex Plane · 31.2.2 A Complex Number Is Just an Arrow