断齿分析

有二叉树计算表达式的值-a binary tree calculate the value of the expression

数值分析中的高斯消去法解方程组问题，含输入输出界面。-Numerical analysis of Gaussian elimination solution of the problem equations, including input and output interface.

C++实现离散数学中对称矩阵的判断。6行6列的矩阵，闲来无事，用VC++写一个小程序，判断是否是配对矩阵，很有意思哦！-C++ realization of discrete mathematics in the symmetric matrix judgments. 6 row 6 of the matrix, nothing better, using VC++ to write a small program to determine whether the matching matrix, very interesting oh!

此代码为各向同性材料在平面应力状态的金属一样的随动强化你可以使用更精细的随动强化模型，所以用 fortran 语言写一个子程序来实现他们的本构关系。

! 2 ! HOMPACK90 is a suite of FORTRAN 90 subroutines for solving nonlinear 3 ! systems of equations by homotopy methods. There are subroutines for 4 ! fixed point, zero finding, and general homotopy curve tracking problems, 5 ! utilizing both dense and sparse Jacobian matrices, and implementing 6 ! three different algorithms: ODE-based, normal flow, and augmented 7 ! Jacobian. The (driver) subroutines called by the user are given in the 8 ! table below, and are well documented internally. The user need not 9 ! be concerned with any other subroutines in HOMPACK90. -! 2 ! HOMPACK90 is a suite of FORTRAN 90 subroutines for solving nonlinear 3 ! systems of equations by homotopy methods. There are subroutines for 4 ! fixed point, zero finding, and general homotopy curve tracking problems, 5 ! utilizing both dense and sparse Jacobian matrices, and implementing 6 ! three different algorithms: ODE-based, normal flow, and augmented 7 ! Jac

误差分析的方法有多种，例如，威点逊（J. H. Wilkison）针对的计算机的浮点运算提出的“向后误差分析”，这是一种先验估计误差的方法，较以往的“向前误差分析”在矩阵运算的舍入误差估计上有较好的结果，以而使矩阵的误差分析获得了突破性的进展，使不少用向前误差分析难于判定可靠性的数值方法获得新的进展。-error analysis by a number of means, for example, Granville point Morrison (J. H. Wilkison), referring to a computer"s floating-point operations "backward error analysis," This is a priori estimation error method, compared to the previous "Forward Error Analysis" in the matrix computation Rounding error a better estimate on the results of a matrix so the error analysis of a breakthrough in the progress, many with forward error analysis difficult to determine the reliability of numerical methods to achieve new progress.

审核ISBN的另一算法，或许不是最好的，但至少是鄙人刚学编程时的想法。在此各大家共勉。 -audit ISBN another algorithm, perhaps not the best, but at least I am just learning programming ideas. Here we all share.

自己做的程序,可能对你有用-own procedures that may be useful to you

常用数值算法，真的很不错的，希望对大家有用处-Commonly used numerical algorithms, really good, everyone would like to be useful

解马尔科夫链CHAIN.C-CHAIN.C