A few of polynomialidentity structures defined on complex field have been discussed and studied.
探讨了几种复数域的多项式同一性结构，并研究了它们的一些性质。
2
So that, the studies on the zeros of polynomial can be looked upon as the studies on the constructions of polynomialidentity structure, its properties and the way to pick them up.
从演绎的内涵上将多项式零点问题的研究归结为对同一性多项式的结构，性质、与选择的研究。
3
With the use of the properties of the second Chebyshev polynomial, a group of interesting identity of sine and cosine function is obtained.