查找一个文件中相同字符出现次数

三维点云重建，有较好的结果，是用贪婪投影算法实现的，可以将pcd格式的点云数据保存为有面片的ply格式的点云数据

资源描述文件中包含了各个互联网的面经，包括百度、阿里、腾讯等大公司，内容很全面，很适合找工作的同学，希望能给大家带来帮助。

自己编写的任务机调度问题的近似算法（包括了穷举+近似的算法），请指正-The task of preparing their own local approximation algorithm for scheduling problem (including the exhaustive+ similar to the algorithm), please correct me

! 平面杆系结构静力分析程序 ! 先处理法源程序 ! ! 主要功能和特点： ! 可调数组 ! 输入单元结点编号和结点位移编码； ! 先处理法形成总体刚度阵和结构综合结点荷载 ! 存储总刚上三角元素； ! GAUSS消元法解线性代数方程组； ! 计算结点位移和单元杆端力-! Plane truss structure static analysis program! First treatment source!! Main functions and characteristics:! Adjustable array! Input module node number and node displacement coding ! First approach to form and structure of the overall stiffness matrix Consolidated Statement point load! storage total just on the triangular element ! GAUSS elimination method solving linear algebraic equations ! computing node displacement and force unit rod end

一个可作为标准的PSO算法C语言程序，2011版。可读性极其高，这也是牺牲了一小点性能换取而来的。借鉴了众多权威人士的工作，得到了他们之中许多人的意见。

简单的讲，所谓拟合是指已知某函数的若干离散函数值{f1,f2,…,fn}，通过调整该函数中若干待定系数f(λ1, λ2,…,λ3), 使得该函数与已知点集的差别(最小二乘意义)最小。如果待定函数是线性，就叫线性拟合或者线性回归(主要在统计中)，否则叫作非线性拟合或者非线性回归。表达式也可以是分段函数，这种情况下叫作样条拟合。-Simply speaking, the so-called fitting refers to a function known to a number of discrete function values (f1, f2, ..., fn), by adjusting the number of undetermined coefficient function f (λ1, λ2, ..., λ3), makes the function and known points of difference (least squares significance) the smallest. To be determined if the function is linear, is called linear regression or linear regression (mainly in the statistics), otherwise known as non-linear fitting, or nonlinear regression. Expressions can also be a sub-function, this case is called spline fitting.

TOYFDTD版本1.0，使用的是计算电磁学的FDTD算法，带动态内存分配-TOYFDTD version 1.0, using the FDTD computational electromagnetics algorithm, with dynamic memory allocation

该程序用递归的方法产生格雷码序列,它需要一定的额外的空间.-the procedures used recursive methods Gray code sequence, it needs the additional space.

Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB

动态规划算法解决行商问题 VC-dynamic programming algorithm to solve the problem VC Cohong