Is ABCDEF = AB(C(D))EF for matricies

1. Sep 15, 2005

eax

is ABCDEF = AB(C(D))EF for matricies? Also is ABCD(EFGH) = ABCDEFGH?

2. Sep 15, 2005

EnumaElish

"Yes" to both, although I am not sure what C(D) means in terms of matrix multiplication.

3. Sep 16, 2005

HallsofIvy

Staff Emeritus
Yes, multiplication of matrices is "associative".