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Linear Algebra and Learning from Data

Exercise 1.12.9

Answers

1.
For a matrix $A$ , we should have $r_{1} + \dots + r_{m} = c_{1} + \dots + c_{n}$
1.
For an $m$ by $n$ by $p$ tensor, the sum of the $m$ slices, $n$ slices and $p$ slices should equal to each other. Because when you add the slices up, they are just the sum of all entries in the tensor.

niuers

2020-03-20 00:00

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