- #1

- 4

- 0

## Main Question or Discussion Point

How do I find the Laurent expansion of a function containing the principal branch cut of the nth root?

Example:

[tex]f(z)=-iz\cdot\sqrt[4]{1-\frac{1}{z^{4}}}[/tex]

Example:

[tex]f(z)=-iz\cdot\sqrt[4]{1-\frac{1}{z^{4}}}[/tex]