In Einstein notation, the duplication with the i index implies the sum on i. The preceding is then denoted ?ijk?imn = ?jm?kn ? ?jn?km.These Homes are important for knowledge the actions of the tensor in different coordinate techniques.? i j ? i n = ? j n displaystyle varepsilon _ ij varepsilon ^ in = delta _ j ^ n CMD akan memberi tahu pemain tenta