我在 matlab_Index 中收到此错误，超出了数组元素的数量。 索引不得超过 1

Question

I put 7 rows and 7 columns in A to make a 7x7 matrix, but I don't know why an error occurs. enter image description here

Answer 1

In MATLAB, the 'index exceeds matrix dimensions error' is encountered when you try to access an element which is not present in the array or matrix.

As an example, consider the following code:

m = zeros(7,7) ; % creates a 7x7 matrix filled with zeros
m(3,3) = 1 ;     % sets one element to 1
m(3,3) % Prints '1' in the output console

% ! The following line produces an error !
m(8,1) % Throws an 'index exceeds matrix dimensions' error! 

If you shared a sample of the code you are struggling with, it would be easier for me to help you solve the problem.