No Grand total is 26 elements using 208 bytes As menitoned before, the notation used by Matlab is the standard linear algrebra notation you should have seen before. Matrix-vector multiplication can be easily done. Once you start throwing matrices and vectors around, it is easy to forget the sizes of the things you have created. You can work with different parts of a matrix, just as you can with vectors. Again, you have to be careful to make sure that the operation is legal.
Index exceeds matrix dimensions.
Once you are able to create and manipulate a matrix, you can perform many standard operations on it. For example, you can find the inverse of a matrix. You must be careful, however, since the operations are numerical manipulations done on digital computers. In the example, the matrix A is not a full matrix, but matlab will still return a matrix. Matrix is close to singular or badly scaled.