Conformality & the Jacobian Lesson 2
Why do holomorphic maps preserve angles? Zoom in at a point and see the Jacobian act as a pure rotation-plus-scaling when the Cauchy-Riemann equations hold — the geometric content of complex differentiability.
Why do holomorphic maps preserve angles? Zoom in at a point and see the Jacobian act as a pure rotation-plus-scaling when the Cauchy-Riemann equations hold — the geometric content of complex differentiability.