Matrix multiplication: (AB)ᵢⱼ ((AB)_ij = sum over k of A_ik B_kj)
jee-mainjee-advanced
(AB)_ij = sum over k of A_ik B_kj
What each symbol means
| Symbol | What it stands for |
|---|---|
| A | m×p matrix |
| B | p×n matrix |
| AB | m×n matrix |
When to use this
Columns of A must match rows of B (inner dimensions p).