User learning

6 votes

1 answer

4k views

Minimizing a quadratic-over-linear fractional function

asked Dec 2, 2016 at 6:02

4 votes

5 answers

42k views

a+b=a*b, a-b=? if a and b are positive integers

asked Sep 7, 2016 at 3:25

2 votes

2 answers

346 views

Average distance between two points lying on boundary of a square

asked Jul 18, 2016 at 11:36

2 votes

0 answers

39 views

Geometric reason for PCA eigen vectors being transposed

asked Dec 9, 2016 at 23:06

2 votes

1 answer

147 views

$x^T A x > 0 \forall x \neq 0$ for a symmetric matrix $A$ with eigen values $\lambda_i > 0 \ \forall i$

asked Dec 31, 2016 at 0:05

2 votes

0 answers

137 views

Intuition for Monty Hall and a similar problem

asked Oct 9, 2017 at 8:30

2 votes

2 answers

3k views

Probability that neither friend watches favourite movie

asked Oct 21, 2017 at 22:41

2 votes

1 answer

2k views

Binomial Coefficient bound using Entropy function

asked Nov 15, 2017 at 10:38

2 votes

1 answer

156 views

Intuitive explanantion for random vectors and estimation theory

asked Jan 18, 2017 at 7:32

2 votes

1 answer

87 views

$Px=q $ doesn't have a solution?

asked Dec 2, 2016 at 5:11

1 vote

0 answers

1k views

Proving that a numbers puzzle on Countdown is impossible

asked Jan 21, 2017 at 1:27

1 vote

2 answers

294 views

Maximum entropy problem constraints

asked Mar 21, 2017 at 3:18

1 vote

0 answers

30 views

Example of convex function that does not have subgradient

asked Mar 30 at 15:11

1 vote

0 answers

251 views

Zero dimensional Hilbert space

asked Jan 12, 2017 at 19:16

1 vote

1 answer

98 views

Why is an RV defined as $X: \Omega \rightarrow \mathbb{R}$?

asked Jan 18, 2017 at 3:27

1 vote

1 answer

171 views

Geometric interpretation of determinant when two rows are swapped

asked Aug 31, 2016 at 23:48

1 vote

2 answers

339 views

No local minima in parabola through inspection

asked Sep 15, 2016 at 5:41

1 vote

1 answer

362 views

Width of an ellipsoid

asked Nov 30, 2016 at 4:27

0 votes

3 answers

112 views

Drawing a specific card from a repeatedly reshuffled deck

asked Dec 26, 2016 at 9:50

Stack Exchange Network

19 Questions

Minimizing a quadratic-over-linear fractional function

a+b=a*b, a-b=? if a and b are positive integers

Average distance between two points lying on boundary of a square

Geometric reason for PCA eigen vectors being transposed

$x^T A x > 0 \forall x \neq 0$ for a symmetric matrix $A$ with eigen values $\lambda_i > 0 \ \forall i$

Intuition for Monty Hall and a similar problem

Probability that neither friend watches favourite movie

Binomial Coefficient bound using Entropy function

Intuitive explanantion for random vectors and estimation theory

$Px=q $ doesn't have a solution?

Proving that a numbers puzzle on Countdown is impossible

Maximum entropy problem constraints

Example of convex function that does not have subgradient

Zero dimensional Hilbert space

Why is an RV defined as $X: \Omega \rightarrow \mathbb{R}$?

Geometric interpretation of determinant when two rows are swapped

No local minima in parabola through inspection

Width of an ellipsoid

Drawing a specific card from a repeatedly reshuffled deck