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Question about interpreting limit notation: $\lim_{\|x\| \rightarrow \infty}f(x)$

score 119 · Answer 1 · 2019-06-11 22:42:48

119

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Question about interpreting limit notation: $\lim_{\|x\| \rightarrow \infty}f(x)$

Published on 11 Jun 2019 - 22:42

score 94 · Answer 2 · 2026-03-30 07:28:19

94

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If $D$, $E$, $F$ are feet of perpendiculars from a point to the sides of $\triangle ABC$, then $BD^2-DC^2+CE^2-EA^2+AF^2-FB^2=0$

Published on 30 Mar 2026 - 7:28

score 24 · Answer 3 · 2026-03-26 03:11:17

24

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Why must this ratio of these likelihood functions be less than $1$?

Published on 26 Mar 2026 - 3:11

score 1.2k · Answer 4 · 2026-03-31 21:15:12

1.2k

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Steepest descent for the quadratic norm?

Published on 31 Mar 2026 - 21:15

score 135 · Answer 5 · 2026-04-02 01:26:29

135

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How do I prove that for continuous $f$, if $\forall x \in \mathbb{Q}, \, f(x) = f(1)^x$ then $\forall x \in \mathbb{R}, \, f(x) = f(1)^x$?

Published on 02 Apr 2026 - 1:26

score 572 · Answer 6 · 2026-03-27 05:39:00

572

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Semi group $S$, $x^2y=y=yx^2$ for all $x$, $y$ show that $S$ is abelian

Published on 27 Mar 2026 - 5:39

score 54 · Answer 7 · 2026-03-25 17:36:45

54

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Honeycomb Conjecture proved by Hales

Published on 25 Mar 2026 - 17:36

score 781 · Answer 8 · 2019-06-13 11:54:41

781

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Showing that a polynomial is surjective

Published on 13 Jun 2019 - 11:54

score 182 · Answer 9 · 2019-06-13 14:59:41

182

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How is $x = -\text{sign}(c_i)e_i$ the solution to minimize $c^T x$ subject to $\|x\|_1 \le 1$?

Published on 13 Jun 2019 - 14:59

score 128 · Answer 10 · 2019-06-14 03:17:03

128

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How to prove $0\le f\le 1$?

Published on 14 Jun 2019 - 3:17

score 56 · Answer 11 · 2019-06-14 08:38:20

56

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Let $\mathfrak{D}$ be the collection of subsets of $X$ of the form $E_1^{\lambda_1}\cap\dots\cap E_n^{\lambda_n}$. Is $X=\bigcup_{D\in\mathfrak{D}}D$?

Published on 14 Jun 2019 - 8:38

score 50 · Answer 12 · 2019-06-14 13:22:57

50

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The restriction of unit norm functionals to the ball are a closed subset of functionals defined over a ball

Published on 14 Jun 2019 - 13:22

score 67 · Answer 13 · 2026-04-07 20:01:46

67

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How do I move from the $5$ NAND-gate xor solution to the $4$ NAND-gate xor solution?

Published on 07 Apr 2026 - 20:01

score 92 · Answer 14 · 2026-03-28 08:36:25

92

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If $f, g: P \to \mathbb{R}$ are Riemann integrable functions then $f \cdot g$ is Riemann integrable - Proof Understating

Published on 28 Mar 2026 - 8:36

score 94 · Answer 15 · 2026-04-01 00:23:41

94

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Quotient set locally Euclidean

Published on 01 Apr 2026 - 0:23

List Question

Question about interpreting limit notation: $\lim_{\|x\| \rightarrow \infty}f(x)$

If $D$, $E$, $F$ are feet of perpendiculars from a point to the sides of $\triangle ABC$, then $BD^2-DC^2+CE^2-EA^2+AF^2-FB^2=0$

Why must this ratio of these likelihood functions be less than $1$?

Steepest descent for the quadratic norm?

How do I prove that for continuous $f$, if $\forall x \in \mathbb{Q}, \, f(x) = f(1)^x$ then $\forall x \in \mathbb{R}, \, f(x) = f(1)^x$?

Semi group $S$, $x^2y=y=yx^2$ for all $x$, $y$ show that $S$ is abelian

Honeycomb Conjecture proved by Hales

Showing that a polynomial is surjective

How is $x = -\text{sign}(c_i)e_i$ the solution to minimize $c^T x$ subject to $\|x\|_1 \le 1$?

How to prove $0\le f\le 1$?

Let $\mathfrak{D}$ be the collection of subsets of $X$ of the form $E_1^{\lambda_1}\cap\dots\cap E_n^{\lambda_n}$. Is $X=\bigcup_{D\in\mathfrak{D}}D$?

The restriction of unit norm functionals to the ball are a closed subset of functionals defined over a ball

How do I move from the $5$ NAND-gate xor solution to the $4$ NAND-gate xor solution?

If $f, g: P \to \mathbb{R}$ are Riemann integrable functions then $f \cdot g$ is Riemann integrable - Proof Understating

Quotient set locally Euclidean

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