Ln z^(1/n)=1/n Lnz在复数范围内成立

Ln z^(1/n)=1/n Lnz Still Exists in Complex Number Range

证明了复变等式Ln z^(1/n)=1/n Lnz的成立,纠正了原有教材中的错误结论。

The complex variable equation of Ln^n（z的平方根）=1/nLnz has been proved true, and erroneous conclusion in the old textbook has been corrected.