The ComplexNumber type exposes the following members.
Operators
Name  Description  

Addition 
Addition of Complex numbers (doesn't change this Complex number).
(x+i*y) + (s+i*t) = (x+s)+i*(y+t)
 
Division 
Division of Complex numbers.
 
Multiply 
Multiplication of Complex numbers.
 
Subtraction 
Subtraction of Complex numbers.
(xi*y) + (si*t) = (xs)+i*(yt)
 
UnaryNegation 
Negative of this complex number (chs stands for change sign).
This produces a new Complex number and doesn't change
this Complex number.
(x+i*y) = xi*y.

See Also