BUILT-IN WOLFRAM LANGUAGE SYMBOL
represents the domain of complex numbers, as in .
- evaluates immediately only if x is a numeric quantity.
- Simplify[expr∈Complexes] can be used to try to determine whether an expression corresponds to a complex number.
- The domain of real numbers is taken to be a subset of the domain of complex numbers.
- Complexes is output in TraditionalForm as .
is a complex number:
Exponential of a complex number is a complex number:
Find complex numbers that make an inequality well defined and True: