Shiyu

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1,424 reputation

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	location	Singapore
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48 Answers

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6	Prove $\\| A(A^TA)^{-1}A^T\\|_2 = 1$ when rank of matrix $A$ is $n$
6	Power a Matrix (Without calculating)
4	Singular values of transpose same?
4	Prove Frobenius norm of projection matrix is 1
4	Matrix Question

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1,424 Reputation

+5	What non-symmetric matrices satisfy $x^TAx>0,\forall x\neq 0$
-2	In-depth example or implementation of adaptive control (direct/indirect MRAC)?
+5	Compute $\int_{0}^{+\infty} e^{-y}y^a\mathrm{d} y$
+5	An optimization problem involving orthogonal matrices

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41 Questions

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7	Compute $\int_{0}^{+\infty} e^{-y}y^a\mathrm{d} y$
7	Gradient Descent with constraints
7	A specific type of orthogonal bases
6	Why does $A^TA=I, \det A=1$ mean $A$ is a rotation matrix?
6	How to prove existence of solutions without constructing one?

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47 Tags

47 linear-algebra × 52	4 eigenvalues × 6
15 matrices × 26	3 inequality × 3
14 homework × 8	3 analytic-geometry × 2
8 geometry × 7	3 trigonometry
6 eigenvectors × 3	3 calculus

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4 Accounts

$Mathematics Stack Exchange$	Mathematics	1,424 rep	313
$TeX - LaTeX Stack Exchange$	TeX - LaTeX	277 rep	7
	Stack Overflow	190 rep	7
	Robotics	101 rep

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Yearling × 2	Critic
Popular Question × 2	Supporter
Benefactor	Teacher
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