`conj', `real', `imag'
----------------------

real(COMP)
     :: COMP μ¿ʬ.
imag(COMP)
     :: COMP εʬ.
conj(COMP)
     :: COMP ζʣǿ.

RETURN COMP
     ʣǿ

   * ʣǿФ, , , .
   * , ¿༰ФƤƯ.

     [111] A=(2+@i)^3; 
     (2+11*@i)
     [112] [real(A),imag(A),conj(A)];
     [2,11,(2-11*@i)]

