Khan Academy Static

Learn about identity matrices and about how matrix multiplication relates to real number multiplication (spoiler: the distributive property applies but the commutative property does not!).

2768_Is_matrix_multiplication_commutative_.html

2767_Dimensions_of_identity_matrix.html

2772_Using_identity_zero_matrices.html

2765_Defined_matrix_operations.html

2766_Intro_to_identity_matrix.html

2771_Using_properties_of_matrix_operations.html

2770_Zero_matrix_matrix_multiplication.html

2769_Associative_property_of_matrix_multiplication.html