1,707 reputation
612
bio website cse.iitb.ac.in/~aruniyer
location India
age 31
visits member for 2 years, 8 months
seen 6 hours ago

Dec
6
answered How to prove that $A^2$ is a symmetric matrix
Nov
25
answered Efficient inversion of a symmetric, positive definite matrix
Nov
19
answered Prove $ A^-=\dfrac{1}{4}(-A^2+4A+I)$
Nov
19
answered show that $\mathsf E(Y|X)=\mu_2+\rho\dfrac{\sigma_2}{\sigma_1}(X-\mu_1)$
Nov
15
answered Jensen’s inequality
Nov
11
answered Why is this nested sum formula true
Oct
25
answered Prove $\int_0^{2\pi}\frac{3a\sin^2\theta}{(1-a\cos \theta)^4}$ or $\int_0^{2\pi}\frac{\cos\theta}{(1-a\cos\theta)^3}=\frac{3a\pi}{(1-a^2)^{5/2}}$
Sep
24
answered Is vector W in the span of V1,V2,V3
Sep
24
answered Subordinate norm is equal to $\Vert A\Vert_M=\Vert MAM^{-1}\Vert$ for the norm $\Vert x\Vert_M=\Vert Mx\Vert$
Sep
15
asked Positive Semi Definite Matrix
Jul
12
answered How to parameterize the maximum of a function?
May
16
answered How to prove such an elementary inequality
May
14
answered $6^{(n+2)} + 7^{(2n+1)}$ is divisible by $43$ for $n \ge 1$
Apr
9
answered Minimum of Maximum of Addition of two vectors/arrays
Apr
8
answered orthogonal complement problem: show $\operatorname{oc}(A\cap B)=\operatorname{oc}(A)+\operatorname{oc}(B)$
Mar
31
answered Proving inequality $x^xy^y \geq (\frac{x+y}{2})^{x+y}$
Mar
28
answered How to realize $\lambda_{max}(X)$ is convex?
Mar
28
answered What is the distribution of the dot product of a Dirichlet vector with a fixed vector?
Nov
24
answered $ \begin{bmatrix} -2 & 5 & 4 \\-1 & 0 & 0 \\0 & 4 & 3 \end{bmatrix}^{2013}$ =?
Sep
15
answered Finding the equation of a circle ?