$\begin{array}{l}\mathrm{i**2}\\ \mathrm{>>>}-1\end{array}$

$\begin{array}{l}Re(1+2i)\\ \mathrm{>>>}1\end{array}$

$\begin{array}{l}Im(1+2i)\\ \mathrm{>>>}2\end{array}$

$\begin{array}{l}\mathrm{abs(1+2i)}\\ \mathrm{>>>}2.23606797749979\end{array}$

$\begin{array}{l}\mathrm{conj(1+2i)}\\ \mathrm{>>>}1-2*i\end{array}$