求大神帮我编写一下matlab代码

编写一个函数，然后根据自己的实蚂搭晌际情况调用就可以了。

function [ x ] = Chase_method( A, b )

%Chase method 追赶法求三对角矩阵的解

% A为三对角矩阵的系数，b为等式右端的常数项，返回值x即为最终的解

% 注：A尽量枝败为方阵，b一定要为列向量

%% 求追赶法所需L及U

T = A

for i = 2 : size(T,1)

T(i,i-1) = T(i,i-1)/T(i-1,i-1)

T(i,i) = T(i,i) - T(i-1,i) * T(i,i-1)

end

L = zeros(size(T))

L(logical(eye(size(T)))) = 1 %对角线赋值1

for i = 2:size(T,1)

for j = i-1:size(T,1)

L(i,j) = T(i,j)

break

end

end

U = zeros(size(T))

U(logical(eye(size(T)))) = T(logical(eye(size(T))))

for i = 1:size(T,1)

for j = i+1:size(T,1)

U(i,j) = T(i,j)

break

end

end

%% 利用matlab解矩阵方程的闷锋遍历直接求解

y = L\b

x = U\y

en

计算逗团烂图像线性组合： Z = imlincomb(K1,A1,K2,A2,...,Kn,An) computes K1*A1 + K2*A2 + ... + Kn*An 例山漏子或念：I = imread('cameraman.tif')J = uint8(filter2(fspecial('gaussian'), I))K = imlincomb(1,I,-1,J,128)% K(r,c) = I(r,c) - J(r,c...

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