I am supposed to get list of matrices but I am getting this.What do they mean?

traj =

1×10 cell array

Columns 1 through 8

{4×4 double} {4×4 double} {4×4 double} {4×4 double} {4×4 double} {4×4 double} {4×4 double} {4×4 double}

Columns 9 through 10

{4×4 double} {4×4 double}

Answer 1

[Adam Danz]

That is your list of matrices. It's called a cell array.

traj{1}      %that's your first matrix
traj{2}      %that's your 2nd  matrix, etc....

Since each matrix is the same size (4x4), if you wanted to combine the matrices stored in each element of the cell array into one big matrix, you could concatenate them horizontally

cell2mat(traj)  %assumes traj has size 1 x n

or concatenate them vertically

cell2mat(traj') %assumes traj has size 1 x n

or you could conver them to a 4 x 4 x 10 array

reshape(cell2mat(traj),4,4,10) %assumes traj has size 1 x n

or it might be best to just leave them in the cell array depending on how you will be using those data.

[Adam Danz]

Following my example above,

m = traj{9}

[hrushikesh kyathari]

Thanks

[Stephen23]

You can also view all of the cell array's contents by doing this:

traj{:}

[hrushikesh kyathari]

Thank you very much

Answer 2

[Jos (10584)]

Your variable is a cell array, which is a very useful and common way to store things in matlab. Read more on cell arrays in the documentation:

https://uk.mathworks.com/help/matlab/matlab_prog/what-is-a-cell-array.html