top88_Projection

求解O-S方程特征值，可以适用于多种条件下的O-S方程特征值计算(To solving OS Equation characteristic value, can be applied to a variety of conditions OS equation eigenvalue calculation)

根据物理学的毕奥-萨法尔定理，计算环形线圈周围电磁场的强度。。(According to physics, Biot- Safar theorem, calculate the intensity of electromagnetic field around the circular coil. .)

说明：  相场法材料计算的model C-pure对应的基础相场计算代码，初学者可取(The phase field calculation code corresponding to the model C-pure calculated by the phase field method material is suitable for beginners.)

变步长网格，声波方程，有限差分数值模拟程序，二阶(Variable step mesh, acoustic equation, finite difference numerical simulation program, second order)

python机器学习预测分析核心算法的例程(Python machine learning prediction and analysis of core algorithm routines)

地球科学（Fortran90）: 计算空间重力异常、扰动重力、垂线偏差或重力梯度的垂向梯度。 计算方式：数值积分、二维平面FFT、二维球面FFT或一维FFT。(Earth Science (Fortran90): calculate the gravity anomaly, gravity disturbance, the deflection of the vertical or gravity gradient vertical gradient. Calculation: numerical integration, FFT of the two-dimensional plane, two-dimensional spherical FFT or one-dimensional FFT.)

外点牛顿法，十个参数，可以解决带有约束条件的非线性规划问题。(External point Newton, with dozens of parameters that can solve linear programming problems with constraints)

说明：  经典圆柱绕流算例，基于palabos开源软件，计算结果非常好(cylinder flow with palabos)

这是地球物理学中声波波动方程正演程序，非常有用(this is a program about finite difference)

利用模糊理论计算开关柜运行状态，层次分析法(Fuzzy theory based operating condition assessment For MV switchgear)