Conjugate

Conjugate[x] computes the complex conjugate of x.

Attributes[Conjugate] := {Listable, NumericFunction, Protected, ReadProtected}

Simple examples

In[1]:= Conjugate[4 + 4*I]
Out[1]= 4 + (4*I)*-1
In[2]:= Conjugate[4*I]
Out[2]= -4*I
In[3]:= Conjugate[4]
Out[3]= 4