Göttingen Collection of Mathematical Models and Instruments

# Riemann surface

### Model 863

 Category: H I 9

### Description

Riemann surface of arcsin on steel plate.

The arcsine function can be viewed as a „multivalued“ map $\mathbb C \to \mathbb C$, or better as a single-valued map from the surface $\{(z,w) \in \mathbb C^2\mid \sin z=w\}$ by projection on the first coordinate.