31.2 Drawing Complex Numbers on a Plane: the Complex Plane
Point 4 of 4
31.2.4 Argument: How Far the Arrow Has Turned
Core idea
Picture this: the angle the arrow makes with the positive real axis is its argument, and one full turn brings it back, so arguments differing by 2π point the same way
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 · 31.2.4 Argument: How Far the Arrow Has Turned