Use polar forms, arguments and complex multiplication geometry
Find the modulus and principal argument from Cartesian coordinates
\[z=((-1)\sqrt{3})+(1)i\]
Use the principal argument
\[-\pi<\operatorname{Arg}(z)\leq\pi\]
Enter defined=1 when the argument exists, or defined=0 for zero; enter angle coefficient 0 as a placeholder only when undefined