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MATH 304 Linear Algebra - Texas A&M University

Matrix algebra: linear operations Addition: two matrices of the same dimensions can be added by adding their corresponding entries. Scalar multiplication: to multiply a matrix A by a scalar r, one multiplies each entry of A by r. Zero matrix O: all entries are zeros. Negative: −A is deﬁned as (−1)A. Subtraction: A−B is deﬁned as A+(−B).

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