I was told in my advanced linear algebra class that $$\partial_t I = 0$$ but i do not see how. I’m not too familiar with matrix calculus but i get that $I$ doesn’t change as $t$ changes but how do you differentiate a matrix? Shouldn’t it be the 0 vector or 0 matrix? How is it a scalar?
2026-04-25 02:32:44.1777084364
Why is the derivative of the identity matrix 0?
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