FFT

说明：  LM莱文博格马夸特优化算法，python语言(this is a file of LM algorithm which was wroten by python language)

常用的积分函数，能够很方便的解决数值积分的问题(Commonly used integral function, can be very convenient to solve the problem of numerical integration)

利用雷诺方程和有限元差分法，计算阶梯滑块的压力分布(Reynolds equation and the use of finite element difference method to calculate the pressure distribution of the slider ladder)

abaqus粘弹性人工边界，手动添加比较简单的模型(learning abaqus)

实现重力式热管换热器设计计算功能，简单按照设计任务书，给出所需热管的结构尺寸，涉及的热管蒸发段和冷凝段长度分别为1m，绝热段长度30cm，内径20cm，外径25cm，热管工质为水。(C language for thermosyphon s design.Realize the gravity heat pipe heat exchanger design and calculation functions , simple design in accordance with the mission statement , given the size of the required structure of the heat pipe , heat pipe evaporator and condenser section lengths were involved 1m, adiabatic length 30cm, inner diameter 20cm, 25cm outside diameter heat pipe working fluid is water.)

根据已知的邻接矩阵画出对应的网络图，节点用蓝点表示，连接用线表示(According to the adjacency matrix of the known draw the corresponding network diagram, the node with the blue dot, and connected with lines)

许多图像问题需要某种物体的检测，其中图像之间的物体的外观有自然的变化。 如人脸识别，病变检测，神经通道分割。 这些图像问题可以通过手动注释图像对象来解决，以训练识别正常物体外观的模型。 这可以通过基于PCA的最大似然分类器来完成。(PCA algorithm suitable for detection / recognition of 2D image "objects")

通过换能器测量得到材料的信号到达时间，根据一些已知条件以及声学公式计算材料的声速(Measured by the transducer signal arrival time of the material, according to some known conditions, and calculated acoustic velocity materials)

一个简单的网格生成程序，操作方便，易学，类似于easymesh！(A simple grid generation program, easy to operate, easy to learn, like easymesh!)

Python Tensorflow机器学习实战中文版(Python Tensorflow introduction to practical coding)