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format type in determinant

3 次查看（过去 30 天）
x
x 2011-9-7
关闭： John D'Errico 2020-11-15
clc;
close all;
clear all;
A = [1 2 5 ; 4 4 6 ; 7 8 9];
[x1 x2]=gradient(A);
disp(x1);
disp('GRADIENT IN HORIZONTAL DIRECTION');
disp(x2);
disp('GRADIENT IN VERTICAL DIRECTION');
x=x1+x2;
disp(x);
C=cov(x);
disp(C);
l=det(C);
disp(l);
title('determinant');
S=sqrt(l);
disp(S);
title('square root');
U=2*pi*(2.1*2.1);
F=S/U;
determinant value calculated manually and by pgm varies..format type problem is specified already..how i can solve this?or can i use this code as it is
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Walter Roberson
Walter Roberson 2011-9-7
Looks like a duplicate question to me.
http://www.mathworks.com/matlabcentral/answers/14483-finding-determinant-of-matrix-after-taking-covariance
Walter Roberson
Walter Roberson 2011-9-7
Looks like a duplicate question to me.
http://www.mathworks.com/matlabcentral/answers/14483-finding-determinant-of-matrix-after-taking-covariance

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