Popular Question - Badge - Mathematics Stack Exchange

Popular Question

Question with 1,000 views. This badge can be awarded multiple times.

Awarded 250323 times.

What is the term for whatever is being differentiated?

Awarded Nov 26 at 18:52

ApproachingDarknessFish

2791 silver badge9 bronze badges

For this integral: $\int_0^{\frac{\pi}{4}} x \tan(x) dx$

Awarded Nov 26 at 18:35

MathFail

21.6k4 gold badges46 silver badges88 bronze badges

Proving the cardinality of set intersections

Awarded Nov 26 at 18:35

rubyquartz

5111 gold badge3 silver badges14 bronze badges

A certain “harmonic” sum

Awarded Nov 26 at 18:35

Akiva Weinberger

25.7k2 gold badges52 silver badges130 bronze badges

Given some conditions finding the number of relation between two sets .

Awarded Nov 26 at 18:28

Rajath Radhakrishnan

1,7151 gold badge20 silver badges40 bronze badges

Very hard AM - GM inequality question: $\sqrt{a + \sqrt{b + \sqrt{c}}} \ge \sqrt[n]{abc}$

Awarded Nov 26 at 18:16

William R Li

7710 bronze badges

Closed form expression for the harmonic sum $\sum\limits_{n=1}^{\infty}\frac{H_{2n}}{n^2\cdot4^n}{2n \choose n}$

Awarded Nov 26 at 17:31

Harmonic Sun

2,01410 silver badges16 bronze badges

Get xyz coordinate on surface of a sphere

Awarded Nov 26 at 16:56

Spatial Digger

1013 bronze badges

Would you drown in a bottomless ball pit?

Awarded Nov 26 at 16:51

SIMEL

6901 gold badge7 silver badges22 bronze badges

Hensel Lifting and solving with mods

Awarded Nov 26 at 15:20

ker12

735 bronze badges

Cross-ratio relations

Awarded Nov 26 at 15:07

Voyage

9255 silver badges20 bronze badges

Showing that a radial solution to the 3-dimensional wave equation can be written in a "clever" way

Awarded Nov 26 at 15:07

moran

3,16720 silver badges42 bronze badges

Equivalents of the Partition Principle

Awarded Nov 26 at 14:30

Brinda

1,95218 silver badges32 bronze badges

Show that ln x grows slower for $x \rightarrow \infty$ than every positive $x^α$

Awarded Nov 26 at 14:23

Bernhard

1688 bronze badges

How far can an infinite number of unit length planks bridge a right-angled gap?

Awarded Nov 26 at 14:12

The Guy with The Hat

5473 silver badges12 bronze badges

Real Analysis, Folland Theorem 1.21 Borel Measures

Awarded Nov 26 at 13:31

Wolfy

6,8855 gold badges48 silver badges131 bronze badges

Notation for near optimal solution

Awarded Nov 26 at 13:20

scaramouche

1212 bronze badges

Expectation of function under Gaussian distribution. Help on the interpretation of the result.

Awarded Nov 26 at 12:48

nullgeppetto

3,1663 gold badges24 silver badges53 bronze badges

Fixed points of ordinal exponentiation for bases besides $\omega$

Awarded Nov 26 at 12:34

Mike Battaglia

8,6523 gold badges32 silver badges68 bronze badges

Characteristic subrings or ideals - Examples?

Awarded Nov 26 at 12:34

Martin Brandenburg

184k20 gold badges339 silver badges599 bronze badges

Is there a largest minimal non-guillotine pattern?

Awarded Nov 26 at 12:12

Erel Segal-Halevi

11.6k4 gold badges47 silver badges117 bronze badges

Closed form for ${\large\int}_0^1\frac{\ln^3x}{\sqrt{x^2-x+1}}dx$

Awarded Nov 26 at 11:31

Vladimir Reshetnikov

32.8k11 gold badges180 silver badges324 bronze badges

Using induction prove $n^3-n$ is divisible by 3 whenever n is a positive number.

Awarded Nov 26 at 11:31

TheMedMajor

333 bronze badges

What are the integer solutions to $a^{b^2} = b^a$ with $a, b \ge 2$

Awarded Nov 26 at 11:23

marty cohen

111k12 gold badges90 silver badges187 bronze badges

Understanding the graphic proof of homotopy

Awarded Nov 26 at 11:08

non-abelian group of order 9

9216 silver badges14 bronze badges

Find the number of bijective function such that $f(3) \geq f(9) \geq \ldots \geq f(99)$

Awarded Nov 26 at 10:23

S.M.T

8366 silver badges16 bronze badges

Define A Graph - Tree Graph With "Cycles" as Nodes

Awarded Nov 26 at 10:04

John

1037 bronze badges

Matrix Multiplication - Why Rows $\cdot$ Columns = Columns?

Awarded Nov 26 at 9:36

mowwwalker

1,2215 gold badges18 silver badges29 bronze badges

Legendre polynomials: prove that $P'_{n+1}(x) - P'_{n-1}(x) = (2n+1)P_{n}(x)$ without generating function [closed]

Awarded Nov 26 at 9:07

injo

1651 silver badge10 bronze badges

The quotient of a quotient group by another quotient group

Awarded Nov 26 at 8:30

Saaqib Mahmood

27.8k14 gold badges77 silver badges271 bronze badges

Find $f$ such that $f(0)=1$ and $f(x)=f'(x)+f''(x)+f'''(x)+\cdots$

Awarded Nov 26 at 8:23

Vinod Kumar Punia

6,1043 gold badges51 silver badges110 bronze badges

Triple integral equals to a negative value

Awarded Nov 26 at 8:23

Amai

897 bronze badges

Explanation of lim inf of sequence of functions $f_n$ for Fatou's Lemma

Awarded Nov 26 at 8:15

letslearnmath

4072 silver badges13 bronze badges

If $f(xy) = e^{xy – x – y} (e^y f(x) + e^x f(y)) , x , y \in \mathbb R^+$ and $f ’ (1) = e$ , then find $f(x)$. [duplicate]

Awarded Nov 26 at 8:15

aarbee

10.8k12 gold badges44 silver badges105 bronze badges

Diagonalization and linear transformations

Awarded Nov 26 at 7:19

Kitty Capital

3714 silver badges16 bronze badges

increasing sequence in $\omega_1$

Awarded Nov 26 at 7:19

Toad Jiang

9777 silver badges24 bronze badges

Burau representation and the Jones polynomial

Awarded Nov 26 at 6:23

ddt54

3412 silver badges6 bronze badges

Why is $C^5[a,b]$ infinite dimensional

Awarded Nov 26 at 5:49

Gitika

6794 silver badges15 bronze badges

fundamental group of $S^{1}\cup\left(\mathbb{R}\times0\right)$ (Theta space)

Awarded Nov 26 at 5:05

Tomer Hochbaum

514 bronze badges

Localization based on Distance Measurements via Least Squares

Awarded Nov 26 at 4:34

feltshire

3221 silver badge9 bronze badges

The unique loop (quasigroup with unit) $L$ of order $5$ satisfying $x^2 = 1$ for all $x \in L$

Awarded Nov 26 at 4:12

Travis Willse

109k13 gold badges148 silver badges288 bronze badges

A Turing machine for which halting is outside ZFC

Awarded Nov 26 at 3:40

Karolis Juodelė

9,7982 gold badges28 silver badges44 bronze badges

Cardinality of infinite dimensional vector space

Awarded Nov 26 at 3:28

uio666

213 bronze badges

Why is $a^{-1}$ mod $p$ equal to $a^{p-2}$ mod $p$? [closed]

Awarded Nov 26 at 2:40

Sean Hill

7311 gold badge7 silver badges18 bronze badges

Estimate change in total cost if cost is given by $C(q)=3q^2+5q+10$

Awarded Nov 26 at 2:28

paul

11 bronze badge

Another coins weighing puzzle

Awarded Nov 26 at 1:46

Harry Gartner

4532 silver badges10 bronze badges

Accuracy of numerical methods in finding eigenvalues

Awarded Nov 26 at 1:40

Glo

234 bronze badges

Is the $k$-algebra of upper triangular matrices an indecomposable algebra?

Awarded Nov 26 at 1:34

user10

5,8161 gold badge32 silver badges63 bronze badges

Are there more Lebesgue measurable or more non Lebesgue measurable functions?

Awarded Nov 26 at 1:23

VVV

2,7354 gold badges26 silver badges39 bronze badges

surjective homomorphisms between cyclic groups (wrong question)

Awarded Nov 26 at 1:04

Shiquan

8,7395 gold badges36 silver badges95 bronze badges

Containment of $L^P$ spaces.

Awarded Nov 26 at 0:48

Jordan Reed

115 bronze badges

Cartan subalgebra of ${\frak so}(5)$

Awarded Nov 26 at 0:20

Dac0

9,5542 gold badges24 silver badges64 bronze badges

How was the busy beaver candidate for 6 states calculated?

Awarded Nov 26 at 0:09

jack

7583 silver badges9 bronze badges

Algorithm to decompose a number into the product of an integer and a base two exponencial

Awarded Nov 25 at 23:55

Tomas Sexenian

696 bronze badges

Derivation of Gradshteyn and Ryzhik integral 3.876.1 (in question)

Awarded Nov 25 at 23:09

questions

1355 bronze badges

Total derivative with non-independent variables.

Awarded Nov 25 at 22:23

LRDPRDX

1,32610 silver badges21 bronze badges

How many $n$ digit numbers can be written using only certain digits?

Awarded Nov 25 at 22:23

Tool

4412 gold badges6 silver badges17 bronze badges

A Borel measure defines semi-continuous function?

Awarded Nov 25 at 22:07

Lao-tzu

3,0962 gold badges28 silver badges39 bronze badges

Can there be a continuous function with infinite derivative everywhere?

Awarded Nov 25 at 21:46

pie

9,3292 gold badges15 silver badges73 bronze badges

How do I row-reduce this matrix?

Awarded Nov 25 at 21:37

fatwalrus

7011 gold badge4 silver badges19 bronze badges

Prev 1

…

3 4

6 7

…

4173 Next