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Mathematics

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First retag.
Awarded 8534 times.
Do there exist any results on the existence of a collection of sets with given cardinalities and given cardinalities of pairwise intersections. [closed]
Awarded yesterday
Computing an infinite product
Awarded Apr 27 at 2:53
How do we plot the floor function of $2$ or more arbitrary, finitely bounded functions with the same domain and co domain?
Awarded Apr 14 at 5:31
Wanting to verify a proof about the tensor product of transcendental extensions of a field
Awarded Apr 13 at 21:31
Intuition for $\log_2(n)$ in bit-complexity and the constant factor in change of base
Awarded Apr 12 at 12:32
Common Nested Radical Expansion.
Awarded Apr 8 at 10:40
Clarifying prism/antiprism vocabulary
Awarded Apr 7 at 21:11
Solutions of Polynomials [closed]
Awarded Apr 3 at 11:57
Can someone explain to me what's going on in the Artin-Tate lemma
Awarded Apr 2 at 3:27
Closed and open subsets of locally compact Hausdorff space are locally compact
Awarded Mar 31 at 8:00
Generalization of triangle inequality in tetrahedron
Awarded Mar 29 at 4:34
$n$th Element of the Connell Sequence $1, 2, 4, 5, 7, 9, 10, 12, 14, 16, \dots$
Awarded Mar 26 at 14:36
Finding Max Min Values of Product of Roots
Awarded Mar 17 at 11:38
Let X be the distribution over $N$ (the set of non-negative numbers), with mass $P(X=i) = \frac{a}{2^i}$. What is the value of $a$?
Awarded Mar 9 at 9:19
Binomial coefficient "ways of choosing"
Awarded Feb 27 at 14:46
Expected number of cards drawn to reach the first ace: why is it $(52+1)/(4+1)$? [duplicate]
Awarded Feb 25 at 20:27
Circumcircle of triangle ABC has diam. AD. Tangent in D intersects BC in P. $M=AB\cap PO$ and $N=AC \cap PO$ verify $OM=ON$. Alternate proof?
Awarded Feb 25 at 8:46
Immersed subgroup of a Lie group is a Lie group?
Awarded Feb 22 at 10:49
(post deleted or otherwise unavailable)
Awarded Feb 21 at 17:33
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Awarded Feb 20 at 14:26
Expected value of two dependent Bernoulli random variables.
Awarded Feb 5 at 10:36
How many terms in the series for $\arctan x$ are needed to approximate $\pi$ to ten decimal places?
Awarded Feb 3 at 4:31
What is the smallest positive number ending in 7 which becomes five times larger when this last digit is brought in front of the number?
Awarded Feb 3 at 4:09
Prove geometric inequality
Awarded Feb 1 at 16:32
Solve for $x$ if $y = a\arctan(b x) + cx$
Awarded Jan 20 at 8:42
Propositional calculus - Use of Domination Law
Awarded Jan 14 at 16:02
Cofinality of $\Theta$
Awarded Jan 14 at 3:41
calculate the integral $ \int_{-\infty}^{+\infty} \frac{e^{-itx}}{1 + t^2} dt $
Awarded Jan 10 at 10:37
(post deleted or otherwise unavailable)
Awarded Jan 3 at 9:16
$\prod_{k=1}^{12}\bigl(1+\sqrt{\omega^k-1}\bigr)$ evaluation for $\omega=e^{2\pi i/13}$
Awarded Dec 31, 2025 at 4:26
Conditions for existence at a point of the first partial derivatives
Awarded Dec 30, 2025 at 19:06
How to solve the Diophantine equation $5^{x} = (x+1)^y - x$?
Awarded Dec 29, 2025 at 0:01
Prove $x^TAx = 0$ $\implies$ A is skew-symmetric
Awarded Dec 26, 2025 at 11:41
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Awarded Dec 24, 2025 at 17:02
(post deleted or otherwise unavailable)
Awarded Dec 23, 2025 at 19:30
If $a$ and $b$ are roots of $x^4+x^3-1=0$, $ab$ is a root of $x^6+x^4+x^3-x^2-1=0$.
Awarded Dec 21, 2025 at 8:02
Define $F(s,t)=\int_0^s\int_0^tf(x,y)dydx$. Does there exist $f:[0,1]^2\to\{\pm1\}$ satisfying $F(1,1)=0$ and $f(s,t)=-\text{sign}(F(s,t))$?
Awarded Dec 20, 2025 at 13:11
Derived subgroup of $S_n$ and $D_n$
Awarded Dec 19, 2025 at 20:01
Step size for numerical methods.
Awarded Dec 19, 2025 at 8:37
(post deleted or otherwise unavailable)
Awarded Dec 15, 2025 at 7:26
Prerequisites and targetted audiences for Polya & Szego Problems and Theorems in Analysis
Awarded Dec 14, 2025 at 13:56
Does the iteration of the function $N=2^{k+1}\cdot m-1$ (where $m=\frac{2^{t}\cdot n+1}{3^{k+1}}$) eventually produce all odd multiples of 3?
Awarded Dec 12, 2025 at 12:50
Compare $\log_5(\log_4 3)$ and $\log_6(\log_6 3)$
Awarded Dec 9, 2025 at 16:50
(post deleted or otherwise unavailable)
Awarded Dec 3, 2025 at 5:17
(post deleted or otherwise unavailable)
Awarded Nov 29, 2025 at 20:55
(post deleted or otherwise unavailable)
Awarded Nov 25, 2025 at 12:39
Formula for $\sin(\pi/n)$ with $n$ a positive integer [closed]
Awarded Nov 19, 2025 at 12:34
Possible Error in Dedekind Construction of Stillwell's Book
Awarded Nov 9, 2025 at 13:11
Running supremum and complete $\sigma$-algebra
Awarded Nov 7, 2025 at 18:53
Minimality of an overgroup fusing $x$ and $y$
Awarded Nov 6, 2025 at 16:42
partial derivatives of an unknown function [closed]
Awarded Nov 6, 2025 at 7:05
(post deleted or otherwise unavailable)
Awarded Nov 5, 2025 at 21:30
compute $\int\limits_{0}^{1} \frac{\sinh^{-1} \left( \sqrt{\frac{1}{2+x}} \right)}{\sqrt{3 - 2x - x^2}} \, \textrm dx$
Awarded Nov 3, 2025 at 18:38
Factorization and conditional independence
Awarded Nov 3, 2025 at 6:13
Can regularization (Abel/Borel) of a divergent derivative series tell us about $f'(x)$?
Awarded Nov 3, 2025 at 4:12
Prove $\triangle BFQ \sim \triangle CEQ$ in the circumcircle of $\triangle ABC$
Awarded Nov 2, 2025 at 10:07
In a trapezium $ABCD$, by trigonometric relations find the value of $\angle CBA$.
Awarded Oct 27, 2025 at 2:23
$\dfrac{\mathrm{d}^n}{\mathrm{d}x^n}\dfrac{e^{ax}}{\ln(cx)}$ and summation with Stirling number of the first kind
Awarded Oct 25, 2025 at 0:47
(post deleted or otherwise unavailable)
Awarded Oct 23, 2025 at 19:46
(post deleted or otherwise unavailable)
Awarded Oct 21, 2025 at 5:57
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