Digital Library of Mathematical Functions
About the Project
NIST
4 Elementary FunctionsTrigonometric Functions4.15 Graphics

Figure 4.15.9 (See in context.)

See accompanying text
Figure 4.15.9: \mathop{\mathrm{arcsin}\/}\nolimits\!\left(x+iy\right) (principal value). There are branch cuts along the real axis from -\infty to −1 and 1 to \infty.