_________________ _________________
4 / 2 2 /atan2(im(a), re(a))\ 4 / 2 2 /atan2(im(a), re(a))\
x1 = \/ im (a) + re (a) *cos|-------------------| + I*\/ im (a) + re (a) *sin|-------------------|
\ 2 / \ 2 /
$$x_{1} = i \sqrt[4]{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(\operatorname{im}{\left(a\right)},\operatorname{re}{\left(a\right)} \right)}}{2} \right)} + \sqrt[4]{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(\operatorname{im}{\left(a\right)},\operatorname{re}{\left(a\right)} \right)}}{2} \right)}$$
Сумма и произведение корней
[src] _________________ _________________
4 / 2 2 /atan2(im(a), re(a))\ 4 / 2 2 /atan2(im(a), re(a))\
\/ im (a) + re (a) *cos|-------------------| + I*\/ im (a) + re (a) *sin|-------------------|
\ 2 / \ 2 /
$$i \sqrt[4]{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(\operatorname{im}{\left(a\right)},\operatorname{re}{\left(a\right)} \right)}}{2} \right)} + \sqrt[4]{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(\operatorname{im}{\left(a\right)},\operatorname{re}{\left(a\right)} \right)}}{2} \right)}$$
_________________ _________________
4 / 2 2 /atan2(im(a), re(a))\ 4 / 2 2 /atan2(im(a), re(a))\
\/ im (a) + re (a) *cos|-------------------| + I*\/ im (a) + re (a) *sin|-------------------|
\ 2 / \ 2 /
$$i \sqrt[4]{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(\operatorname{im}{\left(a\right)},\operatorname{re}{\left(a\right)} \right)}}{2} \right)} + \sqrt[4]{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(\operatorname{im}{\left(a\right)},\operatorname{re}{\left(a\right)} \right)}}{2} \right)}$$
_________________ _________________
4 / 2 2 /atan2(im(a), re(a))\ 4 / 2 2 /atan2(im(a), re(a))\
\/ im (a) + re (a) *cos|-------------------| + I*\/ im (a) + re (a) *sin|-------------------|
\ 2 / \ 2 /
$$i \sqrt[4]{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(\operatorname{im}{\left(a\right)},\operatorname{re}{\left(a\right)} \right)}}{2} \right)} + \sqrt[4]{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(\operatorname{im}{\left(a\right)},\operatorname{re}{\left(a\right)} \right)}}{2} \right)}$$
I*atan2(im(a), re(a))
_________________ ---------------------
4 / 2 2 2
\/ im (a) + re (a) *e
$$\sqrt[4]{\left(\operatorname{re}{\left(a\right)}\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} e^{\frac{i \operatorname{atan_{2}}{\left(\operatorname{im}{\left(a\right)},\operatorname{re}{\left(a\right)} \right)}}{2}}$$