files

插值、拟合与规划问题 插值、拟合与规划问题(Interpolation, fitting with the planning of interpolation, fitting and planning issues)

上三角或下三角矩阵也有大部份的元素不储存值（为0），我们可以将它们使用一维阵列来储存以节省储存空间，而对称矩阵因为对称于对角线，所以可以视为上三角或下三角矩阵来储存。(Upper or lower triangular matrix or a large majority of elements are not stored value (0), we can use them to store a one-dimensional array in order to save storage space, and because the symmetrical diagonal symmetric matrix, it can be regarded as the or lower triangular matrix storage.)

考虑直齿轮热弹耦合，计算啮合刚度及齿轮摩擦热(To thermoelastic coupling calculation consider spur gear meshing stiffness and gear frictional heat)

FFT，快速傅立叶变换，求一个信号的幅值和相角，频谱特性(FFT, fast Fourier transform, seeking a signal amplitude and phase angle, spectral characteristics)

测绘程序，计算测边网各点坐标的评查程序，值得借鉴(Mapping program to calculate the coordinates of each point measured the side-netting of assessment investigative procedures, worth learning)

说明：  ICP算法实现自动配准，基于opencv及vs实现，是二维的(ICP algorithm for automatic registration, based on opencv and vs implementation, is two-dimensional)

说明：  一维波动方程的间断有限元计算，包括网格的划分，数值积分的计算等。(Discontinuous finite element method for one-dimensional wave equation, including mesh division, numerical integration calculation and so on.)

Floor planning and route

齐民友的重温微积分，通俗易懂的经典数学书籍。 (Naritami revisit the Friends of calculus, a classic user-friendly math book.)

用于计算锁模激光腔中增益饱和强度，用于锁模激光(For calculating the gain saturation intensity in a mode-locked laser cavity for a mode locke)