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gaosixiaoqu
- 可计算任意元一次方程组。 计算时只需将方程化成方程矩阵,将变量系数一一代入a[n][n],等式右边常量代入b[n]即可。-computable arbitrary yuan linear equation group. The calculation equation can be turned into matrix equation, the variable coefficient of a generation into a [n] [n], the right side of th
Eular_fixed_a_co2(xiu)
- Eular法解分数阶微分方程,分数阶导数定义系数通过fourier法计算-eular method of fractional differential equations, fractional derivative definition coefficient calculated by fourier
BDF_fixed_a_co2
- BDF法解分数阶微分方程,分数阶导数定义系数通过fourier法计算-BDF method of fractional differential equations, fractional derivative definition coefficient calculated by fourier
Jacobidiedai
- Jacobi迭代的算法 根据给出的系数矩阵和函数值以及需要精度 能求出方程值,以及迭代次数-Jacobi iteration of the algorithm is based on the coefficient matrix and function values and the need for accuracy can be obtained value equation , and the number of iterations
yang
- 数学,好似后的变换,QR分解等解场系数微分方程的程序
CubicMultinomialRegress
- 一、 一元三次回归方程 CubicMultinomialRegress.cs 方程模型为Y=a*X(3)+b*X(2)+c*X(1)+d public override double[] buildFormula() 得到系数数组,存放顺序与模型系数相反,即该数组中系数的值依次是d,c,b,a。 以后所述所有模型的系数存放均与此相同(多元线性回归方程除外)。 public override double forecast(double x) 预测函数,根据模型得到预测结果
ExponentRegress
- 指数回归方程 ExponentRegress.cs 方程模型为 public override double[] buildFormula() 得到系数数组,存放顺序与模型系数相反,即该数组中系数的值依次是b,a。 public override double forecast(double x) 预测函数,根据模型得到预测结果。 public override double computeR2() 计算相关系数(决定系数),系数越接近1,数据越满足该模型。
HyperbolaRegress
- 双曲线回归方程 HyperbolaRegress.cs 注意!该模型要求a与b的值要大于0!使用该模型时应注意验证这个限制条件。我在实现模型时未加入任何出错流程控制。X不能为0。 方程模型为 public override double[] buildFormula() 得到系数数组,存放顺序与模型系数相反,即该数组中系数的值依次是b,a。 public override double forecast(double x) 预测函数,根据模型得到预测结果。 pub
劈因子法解方程
- 用劈因子法解方程,按照提示输入方程的阶数,以及相应的系数即可-rebuilding factor method of solving equations, in accordance with the importation of equations suggest the order, and the corresponding coefficient can be
MAIN 3-DIMENSIONAL CFD-PROGRAM
- #//u(i,j) x方向的速度u;或者θ方向速度uθ #//u(i,j) y方向的速度v;或者径向速度ur'h\K #//pc(i,j) 压力修正 p'[OS #//p(i,j) 压力p-=5-+ #//p(i,j)
gaosi.rar
- 本程序实现一个简单方程组的高斯消去法的换算过程,其中方程系数需构成一个系数增广矩阵,同时输入过程严格按照矩阵输入。,This procedure to achieve a simple equation of the Gaussian elimination of the conversion process, which takes an equation coefficients augmented coefficient matrix, while the importation proc
N_COmp
- 数值计算算法,包括: (1)Lagrange插值 (2)Newton 插值 (3)求f(x0):秦九韶法 (4)求实系数多项式f(z0)。z0为复数(5)二分法求f(x)=0的根 (6)弦截法求f (x)=0的根 (7)求实系数多项式 方程的实根、复根 (8)解线性方程组:Gauss列主元素消去法( 9 )快速弗利叶变换(FFT) -Numerical algorithms, including: (1) Lagrange interpolat
CubicSpline
- 根据给定点和区间值得出三次样条拟合方程的系数-According to a given point and interval should be a cubic spline fitting coefficient
backstep
- 实现多元线性回归方程自变量的选择及系数的求解,获得显著性拟合方程-The realization of multiple linear regression equations to solve significant
single
- 使用奇异值分解来帮助求解最小二乘问题,特别是在方程系数矩阵不满秩的情况下。-SGELSD computes the minimum-norm solution to a real linear least * squares problem: * minimize 2-norm(| b- A*x |) * using the singular value decomposition (SVD) of A. A is an M-by-N * matrix which
NewtonIterative
- 牛顿迭代法求解方程,给定计算初值和程序运行终止条件,根据读入的方程次数以及方程系数,反复计算求出方程的解-Newton used for questing function iteratively
polyorder
- 最小二乘拟合,求多项式系数,包括建立误差方程、误差方程法化,迭代求解-Least squares fitting of a polynomial coefficient, including the establishment of error equation, the error equation, iterative solving
1
- 运用子例程求解二次方程组。包括主程序或者控制例程;用于获取方程系数的用户交互部分;二次方程组的解。-Subroutine solving a quadratic equation. Including the main program or control routine used to obtain the user interaction part of the equation coefficients solution of quadratic group.
jacobi
- jacobi法求解线性方程,输入方程系数即可求出线性方程的解-The Jacobi method for solving linear equations.Enter the equation coefficient to find the solution of linear equations
dif_coef
- 求取离散有限差分方程系数。dif_coef_1.m求取一阶差分系数。dif_coef_2.m求取一阶差分系数。-calcluate the coefficients of discrete finite difference equations.