代码搜索：协方差矩阵
找到约 10,000 项符合「协方差矩阵」的源代码
代码结果 10,000
www.eeworm.com/read/310748/13644581
m mode.m
number=11; % input('please input a number:');
modeaixs=zeros(nodnum,2); %各节点坐标矩阵
for j=number:number
V=zeros(2*nodnum,1);
V(2*(line+1)+1:2*nodnum,1)=4*v(:,number)/max(abs(v(:,numbe
www.eeworm.com/read/308602/13699106
m fsolvtion2.m
function B=fsolvtion2(A)
% A为系数矩阵
[m n]=size(A);
if m==n&det(A)~=0
disp('only zero solvtion')
end
format rat %指定有理式格式输出
B=null(A,'r'); %求解空间的有理基
www.eeworm.com/read/304826/13786090
txt 06-44.txt
例6- 44 矩阵中单个元素的标识。
>> A=magic(4)
A =
16 2 3 13
5 11 10 8
9 7 6 12
4 14 15 1
>> A(1,3)
ans =
3
>> A(2,1)
ans =
5
>>
www.eeworm.com/read/303498/13814447
m fsolvtion2.m
function B=fsolvtion2(A)
% A为系数矩阵
[m n]=size(A);
if m==n&det(A)~=0
disp('only zero solvtion')
end
format rat %指定有理式格式输出
B=null(A,'r'); %求解空间的有理基
www.eeworm.com/read/340906/6317374
cpp dijkstra.cpp
#include
using namespace std;
#define INF 65536 //无穷大
#define MAXV 6
int graph[MAXV][MAXV]={{INF,INF,INF,INF,INF,INF}, //有向图的邻接矩阵表示
{INF,INF,INF,INF,INF,INF},
www.eeworm.com/read/486797/6529443
m twostep.m
function [x,n]=twostep(A,b,x0,eps,varargin)
if nargin==3
eps= 1.0e-6;
M = 200;
elseif nargin
www.eeworm.com/read/486797/6529462
m invaddside.m
function [x,IA]=InvAddSide(A,b)
IA = Inv(A);
x = IA*b;
%求逆矩阵的递归函数
function invA=Inv(A)
N = size(A);
n = N(1);
if(n == 1)
invA = 1/A(n,n); %递归的终止条件
else
u = A(1:(n
www.eeworm.com/read/480529/6665755
txt 06-44.txt
例6- 44 矩阵中单个元素的标识。
>> A=magic(4)
A =
16 2 3 13
5 11 10 8
9 7 6 12
4 14 15 1
>> A(1,3)
ans =
3
>> A(2,1)
ans =
5
>>