The first study of matrix algebra happened when Hermann Grassmann published "Theory of Extension" in 1844. In 1848, James Sylvester coined the term matrix while studying linear algebra.
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ya yes its there a matrix called zero matrix
A sparse matrix is a matrix in which most of the elements are zero.
A zero matrix is a matrix in which all of the entries are zero.
a squar matrix A is called involutary matrix. if A^2=I
yes, it is true that the transpose of the transpose of a matrix is the original matrix