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A zero matrix is a matrix in which all of the entries are zero.
No. A scalar matrix is a diagonal matrix whose main diagonal elements are the same. Only if the diagonal elements are all 1 is it an identity matrix.
i believe you are refering to the matrix on a pdc drill bit. if all the cutters were missing when you pooh, chances are you have ground into the bits body, or the "matrix".
adjacency matrix- since the edges are the relationship between two vertices ,the graph can be represented by a matrix,
All the gunk free floating inside of a cell.