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### Finding roots of complex functions

This could be a Maxima question as it relates to find_root, find_minimum_on_interval, etc.

When I try to find the root of a function involving I (complex numbers) I get:

TypeError: float() argument must be a string or a number

For example, find_root(abs(1-exp(I*x)),-1,1).

 2 retagged FrédéricC 4156 ●3 ●37 ●85

### Finding roots of complex functions

This could be a Maxima question as it relates to find_root, find_minimum_on_interval, etc.

When I try to find the root of a function involving I (complex numbers) I get:

TypeError: float() argument must be a string or a number

For example, find_root(abs(1-exp(I*x)),-1,1).