- #1
Void123
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I have a question regarding the attached file. How do you get those indicies when you multiply the kronecker deltas with A, B, and C? For instance, C - subscript m remains the same on the left side of the expression, but then becomes C subscript i on the right side.
How does this logically work out? What are the rules for these operations?
Thanks.
How does this logically work out? What are the rules for these operations?
Thanks.