常見例句雙語例句The method in this paper is much more convenient than that of Lekhniskii's with biharmonic function.本文的方法比列赫尼茨基的重調和函數法更爲簡便。By using Green function, the boundary integral formula and natural boundary integral equation for the boundary value problems of biharmonic equation were obtained.利用Green函數，根據雙調和方程邊值問題的邊界積分公式和自然邊界積分方程。According to the nature of two-dimensional biharmonic equations, this paper obtains a polynomial solution of the biharmonic equation for stress function by means of the MATHEMATICA software.根據二維雙調和方程的特點竝借助於MATHEMATICA軟件，得到了應力函數雙調和方程的多項式解答。 返回 biharmonic function