1. The problem statement, all variables and given/known data i recently saw a question about complex number, and its answer about the center of a circle is 1/2*(1+i). what does that mean? 2. Relevant equations f:ℂ → ℝ^2 3. The attempt at a solution since we define z=x+yi is an element of ℂ, so by the mapping above, we can say that f:ℂ→ℝ^2 = f(x+yi)=(x,y)? and by the inverse function of f,which is f-1(x,y)→(x+yi)? From the statement above, f-1(1/2,1/2)=1/2+i/2 =1/2*(1+i) ?