δ(adsbygoogle = window.adsbygoogle || []).push({}); _{ij}is the Kronecker delta - is this considered a tensor or vector? I know it means the identity when i=j so I'm going to guess tensor because it's a matrix rather than just a vector but I want to make sure. A matrix is a rank 2 tensor and a vector is a rank 1 and a scalar is a rank 0? How does that work?

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# I Difference between tensor and vector?

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