代码搜索：sparse
找到约 3,324 项符合「sparse」的源代码
代码结果 3,324
www.eeworm.com/read/384940/8832709
m fcall.m
function fcall(a)
global DAE Settings Syn
if ~a.n, return, end
for i = 1:a.n
idx = a.syn{i};
DAE.f = DAE.f + sparse(a.dgen(idx),1,2*pi*Settings.freq*(1-DAE.y(a.omega(i)))*Syn.u(idx),DAE.n,1);
e
www.eeworm.com/read/384512/8866061
m som_neighbors.m
function Ne = som_neighbors(sM,neigh)
% Ne = som_neighbors(sM,neigh)
%
% sM (struct) map or data struct
% (matrix) data matrix, size n x dim
% [neigh] (string) 'kNN' or 'Nk' (which is va
www.eeworm.com/read/426535/9014667
m ex1419.m
%例14-19 稀疏矩阵函数应用
S=sparse(randn(100)>3)
nnz(S)
nzmax(S)
issparse(S)
spy(S) %显示结果如图14-2
www.eeworm.com/read/426535/9014699
m ex1420.m
%例14-20 nnz和nzmax区别
S=sparse(rand(100)>0.98);
nnz(S)
nzmax(S)
B=double(S);
SS=B*B;
nnz(SS)
nzmax(SS)
whos
www.eeworm.com/read/184304/9111135
m exm05~17.m
%exm051523_1.m
n=5;
SM1=sparse(1:n,1:n,-2*ones(1,n),n,n,n);
SM2=sparse(2:n,1:n-1,ones(1,n-1),n,n,n-1);
S1=SM1+SM2+SM2'
e=ones(n,1);
S2=spdiags([e,-2*e,e],[-1,0,1],n,n),
SF=full(S1)
www.eeworm.com/read/365787/9847227
m program_20_1.m
% 本程序实现小波在矩阵方程求解中的应用
clear;clc;
% 构造小波矩阵
[h,g]= wfilters('db7','d'); % 分解低通和高通滤波器
N=512; % 矩阵维数(大小为2的整数幂次)
L=length(h); % 滤波器长度
rank_max=log2(N); % 最大层数
rank_m
www.eeworm.com/read/364985/9884306
m exm051523_1.m
%exm051523_1.m
n=5;
SM1=sparse(1:n,1:n,-2*ones(1,n),n,n,n);
SM2=sparse(2:n,1:n-1,ones(1,n-1),n,n,n-1);
S1=SM1+SM2+SM2'
e=ones(n,1);
S2=spdiags([e,-2*e,e],[-1,0,1],n,n),
SF=full(S1)
www.eeworm.com/read/364508/9904928
m gee_its_sweet.m
function x = gee_its_sweet (A, b)
% GEE_ITS_SWEET solves Ax=b with just x=A\b; it doesn't get sweeter than this
%
% Example:
%
% x = gee_its_sweet (A,b) ; % just does x=A\b, using backslash it
www.eeworm.com/read/166632/10010574
m naspgs.m
function x=naspgs(A,b,x0,e,N)
% 用途：用向量(稀疏存储)形式的Gauss-Seidel迭代解线性方程组Ax=b
% 格式: x=naspgs(A,b，x0,e,N),A为系数矩阵，b为右端向量，x返回解向量。
% x0为初值向量(默认原点)，e为精度(默认1e-4),设置迭代次数上限以防发散(默认500)。
n=length(b);
if na
www.eeworm.com/read/362220/10012102
m program_20_1.m
% 本程序实现小波在矩阵方程求解中的应用
clear;clc;
% 构造小波矩阵
[h,g]= wfilters('db7','d'); % 分解低通和高通滤波器
N=512; % 矩阵维数(大小为2的整数幂次)
L=length(h); % 滤波器长度
rank_max=log2(N); % 最大层数
rank_m