nonlinearFEM

姿态更新算法之一：方向余弦法,直接求解姿态矩阵微分方程(Attitude updating algorithm: direction cosine method, the direct matrix differential equation solving attitude)

一维热传导方程的求解，包括显式和隐式，及其对比(One-dimensional heat conduction equations, including explicit and implicit, and the contrast)

converts a binary undirected adjacency graph into a hypergraph. The output is a non symmetric matrix where the columns are the vertices and the rows are the hyper edges.

遗传算法反演子程序，可用于地球物理非线性反演(The genetic algorithm inversion subroutine, can be used for nonlinear geophysical inversion)

读取csv文件的数据，按要求拉算出平均数(Read csv file data, calculate the average number required to pull)

说明：  16点基4—FFT算法编程。输入16点的序列，采用基4-fft方法计算其快速傅里叶变换。(16 points-based 4-FFT algorithm for programming. Enter the 16-point sequence, with the base 4-fft method for calculating the fast Fourier transform.)

开发环境没有可选项，fortran90,Fortran_90_and_Computational_Science-_codes(Computational Science codes by fortran90 )

Kalman滤波的一个仿真程序，基于“当前”统计模型(Kalman filter, a simulation program, based on the )

内点惩罚函数法C语言程序，适用于机械行业机械优化设计(SUMT)

编程序，按如下要求来求解n元一次线性方程组（假设方程组具有唯一解）。 （1）方程个数n之值由用户通过键盘输入； （2）方程组存放在“增广矩阵”A之中，而n行n+1列的A存储空间通过new来动态分配，且A的各元素值也由用户通过键盘输入 (Allocation procedures, the following requirements to solve the n-a system of linear equations (assuming a unique solution of equations). (1) the number n of the value equation by the user through the keyboard input (2) equations stored in the augmented matrix A, while n line n+ 1 column A storage space through the new dynamically allocated, and A The value of each element by the user through the keyboard input)