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#trace

3 questions from Linear Algebra, Linear Models & Regularization, NumPy

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3 questions · 3 min · score and explanations at the end

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Question 1: Single choice

mediumAI-checkedLinear Algebra

In Einstein notation tr(A4)=aijajkaklali\textrm{tr}(A^4) = a_{ij}a_{jk}a_{kl}a_{li}. Which call computes tr(A4)\textrm{tr}(A^4) for a square tensor A?

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