This is a graphing calculator which lets the user enter a function which can return complex values.
The calculator can be found here:
https://oscarlitorell.github.io/complex-graphing/
The repository can be found here:
https://github.com/OscarLitorell/complex-graphing
How to use it is documented in the user-manual folder. There is an English version and a Swedish version.
Documentation can be found here: