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.
根据二维双调和方程

并借助
MATHEMATICA软件,得

力函数双调和方程
多项式解答。
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IN THE crowded annals of marital spite, a 2010 divorce in Illinois—involving a Roman Catholic man and a Jewish woman and lavishly covered by the local press—stands out for the irreconcilable nature of its core dispute.
2010年,伊利诺伊州
一起离婚案:男方是罗马天主教徒,女方则是一名犹太人。媒体大篇幅
报导二人。如果婚姻中
不和谐可以合成一部编年史,那么这起离婚案算得上是婚姻中核心分歧不可调和
典范。
That's partly because the country's first president, Jomo Kenyatta, made calls to " forgive the past" as he sought to reconcile the fractured relationship between the country's indigenous people and its European minority into one post-independence nation.
部分原因是该国首任总统乔莫·肯雅塔呼吁“原谅过去”,他想要将该国原住民与欧洲少数群体之间破裂
关系调和成该国后来变得自主独立。
教育