Question

Can we interpret the determinant of a $2×2$ Hessian matrix in terms of the area of a parallelogram?

score 77 · Answer 1 · 2026-03-25 23:13:08

77

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Can we interpret the determinant of a $2×2$ Hessian matrix in terms of the area of a parallelogram?

Published on 25 Mar 2026 - 23:13

score 145 · Answer 2 · 2026-03-25 09:16:19

145

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score 419 · Answer 3 · 2020-04-08 17:19:35

419

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score 54 · Answer 4 · 2020-04-08 18:55:19

54

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score 70 · Answer 5 · 2026-03-28 18:12:47

70

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267

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score 36 · Answer 7 · 2026-03-27 22:55:15

36

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score 37 · Answer 8 · 2020-04-13 08:33:45

37

Views

In a 100-grid why isn't the total sum of 16 squares (in an irregular shape) divisible by 16?

Published on 13 Apr 2020 - 8:33

score 45 · Answer 9 · 2026-03-28 16:45:53

45

Views

Is relation "xRy iff x^2 + y^2 is odd or y < 0" correct?

Published on 28 Mar 2026 - 16:45

score 54 · Answer 10 · 2026-03-28 16:44:17

54

Views

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score 118 · Answer 11 · 2026-03-28 08:45:50

118

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score 73 · Answer 12 · 2020-04-15 15:42:30

73

Views

Is this book answer wrong?

Published on 15 Apr 2020 - 15:42

score 146 · Answer 13 · 2026-03-27 16:52:46

146

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list of open conjectures which are solved by students in high-Middle school level or receprocally?

Published on 27 Mar 2026 - 16:52

score 27 · Answer 14 · 2020-04-16 22:11:59

27

Views

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Published on 16 Apr 2020 - 22:11

score 41 · Answer 15 · 2020-04-18 08:22:28

41

Views

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Published on 18 Apr 2020 - 8:22

List Question

Can we interpret the determinant of a $2×2$ Hessian matrix in terms of the area of a parallelogram?

Should we teach congruences from the start rather than normal subgroups in group theory?

How can I find a linear transformation $\mathcal{T}$ that maps an ellipse to a circle?

How to find Cramer-Rao inequality

Cauchy sequence real analysis

“Multivariable analysis” in the US system

Stuck in a simple maths question where I need to find the value of variable $a$

In a 100-grid why isn't the total sum of 16 squares (in an irregular shape) divisible by 16?

Is relation "xRy iff x^2 + y^2 is odd or y < 0" correct?

The complete set of R on the subset of Z when y < 0

holonomic or nonholonomic constraint

Is this book answer wrong?

list of open conjectures which are solved by students in high-Middle school level or receprocally?

Notation of the gradient

$ \sin(x) \simeq \tan(x) $ when $ x \rightarrow 0 $ - Maclaurin series

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