User Clarinetist

1

19

votes

3

answers

477

views

When are graphs deceiving?

graphing-functions big-list

Dec 17 '15 at 9:18 Martín-Blas Pérez Pinilla 38.9k

17

15

votes

2

answers

9k

views

What is the purpose of Jordan Canonical Form?

Nov 6 at 22:55 mitchell chan 1

5

11

votes

3

answers

3k

views

If $K \leq H \leq G$, show that $[G:K] = [G:H][H:K]$.

abstract-algebra group-theory

Aug 25 '19 at 20:05 Ken 1,373

3

10

votes

2

answers

2k

views

A better resource for vector calculus than Stewart?

multivariable-calculus reference-request vectors

Jan 2 '15 at 23:48 Mark Fantini 5,357

9

votes

5

answers

185

views

The sum of infinitely many $c$s is $c$ implies $c = 0$.

real-analysis algebra-precalculus probability-theory measure-theory

Jul 31 '18 at 17:45 Striker 828

2

9

votes

2

answers

397

views

Constrained optimization using calculus of variations (entropy maximization)

probability calculus-of-variations machine-learning entropy

Dec 30 '17 at 17:08 H. H. Rugh 28k

4

8

votes

1

answer

1k

views

Big $O$, little $o$ Notation

notation asymptotics

Jun 24 '19 at 12:21 Community♦ 1

8

votes

3

answers

210

views

Integral $\int \tan^{5}(x)\text{ d}x$

calculus integration indefinite-integrals trigonometric-integrals

Nov 26 '18 at 19:37 Martin Sleziak 51.9k

4

8

votes

0

answers

425

views

What is the intuition behind conditional expectation in a measure-theoretic treatment of probability?

probability-theory measure-theory intuition conditional-expectation

Aug 2 '18 at 11:59 Clarinetist 16.4k

1

8

votes

2

answers

1k

views

For someone who is self-studying topology: what are the main topics to focus on?

general-topology self-learning

Dec 25 '14 at 18:49 graydad 13.5k

13

7

votes

2

answers

6k

views

Differentiation with respect to a matrix (residual sum of squares)?

linear-algebra matrices matrix-calculus

Feb 28 '17 at 19:29 Clarinetist 16.4k

2

7

votes

2

answers

343

views

$\frac{\Gamma(\frac{n_T + n_C - 2}{2})}{\sqrt{\frac{n_T+n_C-2}{2}}\Gamma\left(\frac{n_T+n_C-3}{2}\right)} \approx 1 - \frac{3}{4(n_T+n_C+2)-1}$

statistics gamma-function

Dec 28 '15 at 16:48 Community♦ 1

9

7

votes

1

answer

3k

views

Better than Casella and Berger's Statistical Inference?

statistics reference-request

Jul 27 '14 at 9:13 Anatoly 16k

7

votes

2

answers

193

views

Prove that $\dfrac{0.5x^2 + x + 1}{x^2 + x + 1}$ is a strictly decreasing function.

calculus analysis actuarial-science

Jul 3 '14 at 21:54 Clarinetist 16.4k

6

7

votes

1

answer

900

views

Book on Geometry (GRE Math Subject Test)?

geometry reference-request gre-exam

Aug 13 '13 at 9:33 Community♦ 1

2

7

votes

4

answers

2k

views

Introductory books on complex analysis? [duplicate]

complex-analysis reference-request

Jun 13 '13 at 15:34 Moderat 3,831

2

6

votes

1

answer

180

views

What's a good introductory text to ZF set theory? [duplicate]

reference-request set-theory

Oct 10 '14 at 17:56 AsdrubalBeltran 3,872

5

votes

1

answer

2k

views

Necessary and Sufficient Conditions for a CDF

probability probability-theory probability-distributions

Dec 20 '19 at 1:01 Community♦ 1

5

votes

2

answers

374

views

Claim from an Actuarial Textbook: limits imply the existence of mean and variance

probability probability-theory actuarial-science

Jan 2 '16 at 21:44 Community♦ 1

1

5

votes

2

answers

2k

views

Understanding degrees of freedom in relation to rank for $\sum_{i=1}^{n}(y_i-\bar{y})^2$

linear-algebra statistics

Aug 23 '15 at 20:13 Dilip Sarwate 22k

2

5

votes

1

answer

1k

views

How do I prove that every ring is a semiring?

measure-theory probability-theory

Aug 13 '15 at 8:37 Community♦ 1

5

votes

1

answer

113

views

Evaluate $\int_{-2}^{-1}\frac{\text{d}x}{\sqrt{-x^2-6x}}$.

calculus integration definite-integrals

Dec 26 '14 at 5:57 Suzu Hirose 4,827

2

5

votes

1

answer

1k

views

Math GRE: Calculus Textbooks - is Spivak + Stewart + Rudin sufficient?

multivariable-calculus reference-request gre-exam

Aug 21 '14 at 12:56 please delete me 3,110

1

4

votes

2

answers

82

views

Convex optimization books, except with a focus on problem solving and formalism later?

optimization reference-request convex-optimization

Jan 1 at 19:32 Khue 3,617

4

votes

1

answer

55

views

Function composition for proving polynomials are continuous

general-topology continuity solution-verification

Dec 24 at 4:22 Qiaochu Yuan 342k

4

votes

1

answer

322

views

When is $\mathbf{X}^{T}\mathbf{X}+\lambda\mathbf{I}$ invertible?

linear-algebra matrices statistics regression

Sep 3 '19 at 22:19 Yiorgos S. Smyrlis 74.4k

1

4

votes

1

answer

3k

views

How are critical values derived for the Kolmogorov-Smirnov Test?

statistics

Jan 7 '19 at 13:19 Clarinetist 16.4k

4

votes

2

answers

140

views

Integral $\int\limits_{\sqrt{2}}^{2}\frac1{t^3\sqrt{t^2-1}}$

calculus integration proof-verification definite-integrals

Dec 3 '18 at 2:51 Frank W 3,997

2

4

votes

1

answer

290

views

The Series $-\frac{2}{5}+\frac{4}{6}-\frac{6}{7}+\frac{8}{8}-\frac{10}{9}-\cdots$

calculus sequences-and-series

Jul 12 '18 at 16:54 Clarinetist 16.4k

2

4

votes

2

answers

549

views

Non-standard partition for Riemann Sums?

calculus reference-request definite-integrals riemann-sum partitions-for-integration

Nov 4 '17 at 19:55 quid♦ 39.6k

Stack Exchange Network

current community

your communities

more stack exchange communities

Next badge

254 Questions

When are graphs deceiving?

What is the purpose of Jordan Canonical Form?

If $K \leq H \leq G$, show that $[G:K] = [G:H][H:K]$.

A better resource for vector calculus than Stewart?

The sum of infinitely many $c$s is $c$ implies $c = 0$.

Constrained optimization using calculus of variations (entropy maximization)

Big $O$, little $o$ Notation

Integral $\int \tan^{5}(x)\text{ d}x$

What is the intuition behind conditional expectation in a measure-theoretic treatment of probability?

For someone who is self-studying topology: what are the main topics to focus on?

Differentiation with respect to a matrix (residual sum of squares)?

$\frac{\Gamma(\frac{n_T + n_C - 2}{2})}{\sqrt{\frac{n_T+n_C-2}{2}}\Gamma\left(\frac{n_T+n_C-3}{2}\right)} \approx 1 - \frac{3}{4(n_T+n_C+2)-1}$

Better than Casella and Berger's Statistical Inference?

Prove that $\dfrac{0.5x^2 + x + 1}{x^2 + x + 1}$ is a strictly decreasing function.

Book on Geometry (GRE Math Subject Test)?

Introductory books on complex analysis? [duplicate]

What's a good introductory text to ZF set theory? [duplicate]

Necessary and Sufficient Conditions for a CDF

Claim from an Actuarial Textbook: limits imply the existence of mean and variance

Understanding degrees of freedom in relation to rank for $\sum_{i=1}^{n}(y_i-\bar{y})^2$

How do I prove that every ring is a semiring?

Evaluate $\int_{-2}^{-1}\frac{\text{d}x}{\sqrt{-x^2-6x}}$.

Math GRE: Calculus Textbooks - is Spivak + Stewart + Rudin sufficient?

Convex optimization books, except with a focus on problem solving and formalism later?

Function composition for proving polynomials are continuous

When is $\mathbf{X}^{T}\mathbf{X}+\lambda\mathbf{I}$ invertible?

How are critical values derived for the Kolmogorov-Smirnov Test?

Integral $\int\limits_{\sqrt{2}}^{2}\frac1{t^3\sqrt{t^2-1}}$

The Series $-\frac{2}{5}+\frac{4}{6}-\frac{6}{7}+\frac{8}{8}-\frac{10}{9}-\cdots$

Non-standard partition for Riemann Sums?