本代码是《计算机常用数值计算算法与程序 C++版》一书的配套数值拟合与逼近代码，这些C++程序已经在Virsual C++ 6.0环境下通过。注意，在VC++...

用C写的可以实现求解满秩线性方程组以及最小二乘曲线拟合的函数-written in C can be achieved full rank solving linear equations and least-squares curve fitting the function

Newton法的本质就是不断用切线来近似曲线，因此，Newton法也称为切线方法。本程序用Newton法求解n元正定函数的最小值，例子在程序中。-The essence of Newton method is used constantly to approximate tangent curve, therefore, Newton method, also known as tangent method. This procedure using Newton method to solve n-positive definite function of the minimum value, for example, in the proceedings.

求线性代数方程组,计算方法-linear algebraic equations, the calculation method

Lifitime tracer. *** *** *** *** *** *** *** *** ***** Example: #include void foo() { TRACE_LIFETIME usleep(100000) } void main() { foo() } *** *** *** *** *** *** *** *** *** See lifetimes.log: FUNC: void foo(), AV TTL: 00000xxxxx us (main.cpp, 000xxx) TTL: 00000xxxxx us (THREAD ID: 0000xxxx) ****************************************************** Explanation of newly created lifetimes.log: FUNC - function, whose lifetime we measured AV TTL - mean (average) spent time of all functions calls TTL - time spent on each function call THREAD ID - thread that called a function. ***************************************************** Description: - was written for QT project - multithreaded support (Loki::Singleton has multithreaded sync support) **************************************************** Dependencies: - QT - Loki (A. Alexandrescu) -Lifitime tracer. ****************************************************

jaccobi迭代法和GS迭代法求解线性方程组，并有著名病态对称正定矩阵Hilbert矩阵的生成程序和其不同维数下，求解结果的对比作图-jaccobi iteration and GS iterative method for solving linear equations, and a well-known pathological symmetric positive definite matrix Hilbert matrix formation process and the different dimension, the results of the solution Comparative mapping

随机产生含100个的随机数，得到原始的二维数据，接下来计算出数据的协方差矩阵，找到二维数据中的主方向，并对数据进行降维。

算法导论第四次上机题，01背包回溯法

通过算法计算PI值，不限位数-through algorithm PI values, the median Open-

鲍威尔算法是一种直接利用函数值来构造共轭方向的一种插值类算法，在不用导数的前提下在迭代中逐次构造共轭方向。

viterbi译码算法是一种卷积码的解码算法。优点不说了。缺点就是随着约束长度的增加算法的复杂度增加很快。约束长度N为7时要比较的路径就有64条，为8时路径变为128条。 (2