... 欧拉总和公式：euler summation formula 欧拉微分方程：euler differential equation 欧拉判别准则：euler criterion ...
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nonlinear Euler differential equation groups 非线性Euler微分方程组
Euler linear differential equation 欧拉线性微分方程
Large deformation problems of Euler beams are studied. An efficient integration formula for the deflection is deduced directly from the nonlinear differential equation.
对欧拉梁的大变形问题进行了深入研究，直接从欧拉梁的非线性挠曲线微分方程，推导出求解梁挠度的一种简便有效的积分表达式。
Numerical method of integral order ordinary differential equation, for example, Euler method, linear multiple step method, and so on, has had quite perfect theories.
对于整数阶常微分方程的数值解法，如欧拉法、线性多步法等都已有较完善的理论。
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