< Day Day Up > |
Chapter 5, "Matrix Operations"Equal MatricesTwo matrices are equal if
Adding MatricesFor two matrices of the same size , add the corresponding entries. Subtracting MatricesFor two matrices of the same size, subtract the corresponding entries. Scalar Multiplication
for any scalar value c and any size matrix A. Multiplying Two 2x2 Matrices
Is the Product Defined?For matrix multiplication AB, the number of columns in A must equal the number of rows in B. Size of the ProductIf AB is defined, the size of matrix AB is the number of rows in A by the number of columns in B. Matrix Multiplication Is Not CommutativeAB BA for any size matrices A and B. Transpose for a 3x3 Matrix
TransposeFor any size matrix A, each entry a mn moves to a nm in A T . |
< Day Day Up > |