- #1
jaus tail
- 615
- 48
Homework Statement
Homework Equations
Singularity is where function is not analytic means we can't differentiate denominator. It tends to 0.
The Attempt at a Solution
expanding e^-1/z^2 = 1 - 1/z^2 + 1/z^4 - ...
This has essential singularity at z = 0 as that's where the denominator goes to 0.
but book answer is B. How?