List questions from quadratic-forms

Published on 06 Feb 2021 - 20:41

176

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How is this value of a slope for a parabola

Published on 07 Feb 2021 - 10:58

172

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Get wrong answer on $\frac{\partial \mathbf{x}^{\top} \mathbf{A} \mathbf{x}}{\partial \mathbf{x}}$ when using graph

Published on 26 Mar 2026 - 5:56

421

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Prove that all diagonal entries of a negative definite matrix are negative

Published on 11 Feb 2021 - 21:03

62

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Factorisation of a given polynomial into another with integer roots

Published on 13 Feb 2021 - 6:18

121

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Prove that $\max_x \frac{(x^Tv)^2}{x^TBx}=v^TB^{-1}v$

Published on 02 Apr 2026 - 6:23

207

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What is the point of representing a conic in homogeneous form?

Published on 14 Feb 2021 - 7:14

103

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Solving multivariate quadratic equations over the integers

Published on 29 Mar 2026 - 22:44

153

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Differentiate vector transpose using rules

Published on 26 Mar 2026 - 6:00

74

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lower semi-bounded imply symmetric

Published on 23 Feb 2021 - 5:58

92

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Quadratic forms into sums of squares of linear forms

Published on 24 Feb 2021 - 19:02

213

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Understanding a specific process of finding the derivative of $x^TAx$

Published on 24 Feb 2021 - 20:21

79

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Ideals corresponding to principal genus

Published on 27 Feb 2021 - 22:05

106

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With $n> 3,$ prove that $a_{1}+ a_{2}+ a_{3}\geq 100$ by using Karamata's inequality

Published on 23 Feb 2026 - 19:00

32

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complete the squares to find expression of quadratic forms

Published on 02 Mar 2021 - 14:38

List Question

Convergence of a quadratic form in probability

How is this value of a slope for a parabola

Get wrong answer on $\frac{\partial \mathbf{x}^{\top} \mathbf{A} \mathbf{x}}{\partial \mathbf{x}}$ when using graph

Prove that all diagonal entries of a negative definite matrix are negative

Factorisation of a given polynomial into another with integer roots

Prove that $\max_x \frac{(x^Tv)^2}{x^TBx}=v^TB^{-1}v$

What is the point of representing a conic in homogeneous form?

Solving multivariate quadratic equations over the integers

Differentiate vector transpose using rules

lower semi-bounded imply symmetric

Quadratic forms into sums of squares of linear forms

Understanding a specific process of finding the derivative of $x^TAx$

Ideals corresponding to principal genus

With $n> 3,$ prove that $a_{1}+ a_{2}+ a_{3}\geq 100$ by using Karamata's inequality

complete the squares to find expression of quadratic forms

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