As the title above, I find it hard to imagine or illustrate. It is a question from Coursera.
2026-02-23 00:49:23.1771807763
How many dimensions will a derivative of a 3-D tensor by a 4-D tensor have?
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$D_{abcdefg}:=\frac{\partial A_{abc}}{\partial B_{defg}}$ is of order $7$.