Excavator Badge - Mathematics Stack Exchange

mar 19 at 5:01

Evaluation of $\sum_{x=1}^{\infty}x^{-x}$ [duplicate] — aentropy 1636

mar 18 at 23:11

Diophantine with Gaussian Integer — Jared 7,59521345

mar 18 at 23:11

Set theory puzzles - chess players and mathematicians — zr01 1034

mar 18 at 23:11

Modelling a rail / underground / subway transportation system — AKE 1948

mar 18 at 16:01

Lesson : Solving System of Equations using matrices — Alex 2608

mar 16 at 6:15

Proofs that every mathematician should know? — Loki Clock 85811

mar 16 at 1:10

Fundamental Group — Daniel Rust 3,1882529

mar 15 at 18:00

Dihedral group - elements of order $2$ — Sugata Adhya 1,718214

mar 15 at 17:10

Finding the fundamental group of the complement of a certain graph — Hans Stricker 2,793530

mar 13 at 22:32

Sum of reciprocals of numbers with certain terms omitted — P.. 9,32521131

mar 12 at 23:11

Ways for a continuous function to not be smooth — user4167 792217

mar 11 at 21:50

Proof of Euler's Theorem without abstract algebra? — Intredasting 696

mar 11 at 18:40

Expected size of distinct values in random draw — Flimm 1336

mar 11 at 6:59

Integral of $\int \frac {\sqrt {x^2 - 4}}{x} dx$ — rundavidrun 585

mar 10 at 18:39

How to prove this binomial coefficient identity? — LaPrevoyance 4298

mar 10 at 2:53

$\dfrac{\mathrm d}{\mathrm dx}x^x=$? — ᴊ ᴀ s ᴏ ɴ 3,2931427

mar 9 at 14:33

normal p-subgroups of a finite group and chief factor — Andreas Caranti 16.5k1937

mar 9 at 9:08

Why are the differences between consecutive squares equal to the sequence of odd numbers? — Inceptio 5,391522

mar 8 at 17:17

How are the full semantics of SOL and HOL specified? — Makarius 1135

mar 8 at 1:07

Importance of rank of a matrix — mataug 1356

mar 7 at 12:50

Finding Extra Condition for a function to satisfy $f(n)=n$ — Arthur Fischer♦ 22.7k21954

mar 6 at 20:09

Expected number of rolling a pair of dice to generate all possible sums — azimut 5,78321139

mar 6 at 5:38

Is there a non-guessing way to do a simple division operation? — P L Patodia 133

mar 5 at 19:12

Is it true that a space-filling curve cannot be injective everywhere? — Seirios 9,8352835

mar 5 at 15:32

Contour integration and wolfram — franklin 383212

mar 5 at 6:02

Does .99999… = 1? — Squirtle 686113

mar 2 at 23:52

$-\iint_{A}(y+x)\,dA$ Evaluating — Rodrigo Siqueira 646

mar 2 at 15:07

Is there a notation for $f(x,y) - f(y,x)$? — Cortizol 1,453319

mar 2 at 14:22

Ring of holomorphic functions — Taxi Driver 7,7391727

mar 2 at 5:38

Traffic Homework Help — gnometorule 2,614824

feb 28 at 16:41

Is a full semester of Linear Algebra really needed if I want to specialize in computer graphics? — Chris M. S. 15110

feb 27 at 17:49

Constraints on sum of rows and columns of matrix — hardmath 7,22411133

feb 27 at 7:29

An elegant description for graded-module morphisms with non-zero zero component — Jim 8,7952735

feb 27 at 0:59

Vector taylor series — hkBattousai 730214

feb 25 at 7:34

what is difference between a ring and a field — Caleb Jares 32329

feb 24 at 22:23

What can be said about the uniqueness of an ODE solved with separation of variables — user62909 328

feb 23 at 15:31

In written mathematics, is $f(x)$a function or a number? — Kasper 2,308525

feb 22 at 11:09

Do We Need the Digits of $\pi$? — Łukasz Niemier 16810

feb 21 at 2:26

How many fours are needed to represent numbers up to $N$? — daniel.wright 1186

feb 20 at 11:00

How to show that $[\mathbb{Q}(\sqrt[3]{2},\sqrt[3]{3}):\mathbb{Q}]=9$? — learner 1,8121727

feb 20 at 6:00

Upper Riemann Sum of the Thomae function — Ryan 1,615114

feb 19 at 23:45

Sum of Gaussian Variables — Dominic Michaelis 12.2k21751

feb 19 at 11:34

Why is the volume of a sphere $\frac{4}{3}\pi r^3$? — nbubis 7,43421036

feb 18 at 18:38

Examples of non-Riemann surfaces? — Jonathan Taylor 984

feb 17 at 13:32

How do I calculated probabilities for cards? — Ilya Melamed 222110

feb 16 at 15:40

Propositional Logic Proof of $\vdash \lnot (p \supset q) \supset (p \land \lnot q)$ — Peter Smith 12.5k11234

feb 15 at 19:55

Proof that every finite dimensional normed vector space is complete — 0x90 28118

feb 14 at 23:08

Why are $l^{\infty}$ and $L^{\infty}$ non separable spaces? — Fang Jing 637

feb 14 at 2:47

Mathematical subjects you wish you learned earlier — andyvn22 10119

feb 13 at 10:26

How to change from base $n$ to $m$ — Diego Silvera 951518

feb 11 at 2:24

How to calculate the gradient of log det matrix inverse? — Matt W-D 1155

feb 10 at 19:48

Using mathematics in theoretical physics — Qmechanic 21029

feb 10 at 19:13

What are the differences between rings, groups, and fields? — CogitoErgoCogitoSum 42816

feb 10 at 5:12

Path for learning linear algebra and multivariable calculus — Inquest 3,400522

feb 5 at 22:23

Proof that $\sum\limits_{k=1}^nk^2 = \frac{n(n+1)(2n+1)}{6}$? — glebovg 2,3081424

feb 3 at 20:09

how to simplify $\frac{\log_2 625}{\log_2 125}$ — Evan Teitelman 43118

feb 1 at 23:43

Is there an easier formulation for the Hadamard product of certain pair of series? — vonbrand 7,0813625

feb 1 at 5:07

If all sets were finite, how could the real numbers be defined? — JavaMan 8,45511633

jan 31 at 1:06

A question about the fixed point and group action. — Clayton 8,0161234

jan 27 at 7:42

Jensen's inequality for integrals — Potato 9,89632167

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