Complex canonicalizer for the imaginary atom
Complex2Real.imag_canon(expr, real_args, imag_args, real2imag)
A canonicalization of an imaginary atom, where the returned variables are the imaginary component and NULL for the real component.
An Expression object
A list of Constraint objects for the real part of the expression
A list of Constraint objects for the imaginary part of the expression
A list mapping the ID of the real part of a complex expression to the ID of its imaginary part.