utxcr

求解转子系统前三个临界转速和主振型的传递矩阵法 (Calculation of critical speed)

计算方法中的复数运算(calculation method in the plural Operational)

this is fft header file for fast fourier transform. with this file, you can compute frequency spectrum zero to tow pi.

非线性算法合集，包括牛顿拉夫逊法，Broyden拟牛顿法，弧长法，割线法。每种算法都包含有线性搜索迭代改进。(Nonlinear algorithm collection, including Newton Raphson, Broyden quasi-Newton method, arc-length method, secant method. Each contains a linear search algorithms for iterative improvement.)

Wdisp，是基于建造结构计算软件pkpm的结果数据提取文件，方便使用，提取数据后，可用于绘制曲线。(Wdisp, is based on The construction structure calculations software pkpm the results of data extraction files, easy to use, extract data, can be used to draw the curve.)

用于矩阵的一种cholesky分解方法，第一次上传请多关照(cholesky method for matrix decomposition)

umat公式详细介绍，我也不知道够20字了mei(the introduction of umat in abaqus)

计算水声传播的快速场程序，使用了有限元方法，计算速度快，精度高。(underwater acoustic propagation Fast Field Program, using Finte Element Method,fast and accurate.)

Maximum Flow Graph (Boykov Kolmogorov Algorithm)

对一维光谱实现偏最小二乘回归进行UVE变量选择(UVE variable selection on the spectrum)