“泰勒展开是否以收敛圆为割线”问题是解析开拓理论研究的重要课题，但对此国内外尚无全面细致地研究。

The research on that "Taylor series generally considers its convergent circle as the cut secant" is an important problem of analytic continuation.

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并提出可以用围线积分和解析开拓原理把方程组系数的无穷积分化为有穷积分。

Infinite integrals of coefficients of algebraic equations are reduced to finite integrals by using contour integral and the principle of analytic continuation.

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