I am getting a sparse error in my Matlab code

2018 9 28
1 个回答
更新时间：2018 9 29
2 次查看（30 天）

0 个投票

for i=1:9
for j=1:9
D[i][j]=[0] This line
D[1][1]=[E*A]
D(2)(2)=G*Asy
D(3)(3)=G*Asz
D(4)(4)=G*Jt
D(5)(5)=E*Iy
D(6)(6)=E*Iz
D(7)(7)=1/mu*E1*Jt
D(8)(8)=E1*Jd
D(9)(9)=E1*J11

4 个评论
显示 2更早的评论 隐藏 2更早的评论

madhan ravi
madhan ravi 2018-9-28
select the whole code and press the code button
Adam Danz
Adam Danz 2018-9-28
If this is your entire code except for the two ends you're missing, you don't need to use loops at all. If you want useful feedback you'll need to upload the rest of the loops and format it correctly using the { } button.
Virajan Verma
Virajan Verma 2018-9-29
编辑：Walter Roberson 2018-9-29
This is the whole program
%%Input file for Mass Matrix
fid=fopen('input3.txt','r');
Data=fread(fid);
CharData=char(Data);
fclose(fid);
disp(CharData);
%%Mass Matrix
M=r*A;
M=[M*eye(9)]
%%Input file for D Matrix
fid=fopen('input4.txt','r');
Data=fread(fid);
CharData=char(Data);
fclose(fid);
disp(CharData);
%%Rigidity Matrix
for i=1:9
for j=1:9
D[i][j]=[0]
D[1][1]=[E*A]
D(2)(2)=G*Asy
D(3)(3)=G*Asz
D(4)(4)=G*Jt
D(5)(5)=E*Iy
D(6)(6)=E*Iz
D(7)(7)=1/mu*E1*Jt
D(8)(8)=E1*Jd
D(9)(9)=E1*J11
%%Output file for D Matrix
fid=fopen('OUTPUT3.txt','w');
fprintf(fid,'%d\n',D[i][j]);
fprintf(fid,'%d\n',D[1][1]);
fprintf(fid,'%d\n',D(2)(2));
fprintf(fid,'%d\n',D(3)(3));
fprintf(fid,'%d\n',D(4)(4));
fprintf(fid,'%d\n',D(5)(5));
fprintf(fid,'%d\n',D(6)(6));
fprintf(fid,'%d\n',D(7)(7));
fprintf(fid,'%d\n',D(8)(8));
fprintf(fid,'%d\n',D(9)(9));
fclose(fid);
end
end
madhan ravi
madhan ravi 2018-9-29
编辑：madhan ravi 2018-9-29
Forgot to upload the file/s.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Jishnu Mukherjee
Jishnu Mukherjee 2018-9-28
编辑：James Tursa 2018-9-28

0 个投票

if you are trying to fill the D matrix then try something like this
D=zeros(9,9);
for i=1:9
for j=1:9
D(i,j)=0;
end
end
use () braces instead of []

类别

在 帮助中心 和 File Exchange 中查找有关 Software Development Tools 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by