Question

Approximating matrix multiplication with integer arithmetic.

score 56 · Answer 1 · 2026-04-13 22:14:08

56

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Approximating matrix multiplication with integer arithmetic.

Published on 13 Apr 2026 - 22:14

score 208 · Answer 2 · 2026-04-16 04:09:39

208

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Show that exists a polynomial $p$ such that $\text{sup}_{x\in[1,\infty]}\{|f(x)-p\left(\frac{1}{x}\right)|\}<\epsilon$.

Published on 16 Apr 2026 - 4:09

score 84 · Answer 3 · 2026-04-11 02:18:24

84

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How to approximate this function?

Published on 11 Apr 2026 - 2:18

score 299 · Answer 4 · 2026-04-16 10:17:33

299

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Series approximations of $\sqrt{-\log(x)}$

Published on 16 Apr 2026 - 10:17

score 174 · Answer 5 · 2026-04-15 22:29:16

174

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Approximation of the sum of a series $S(t)=-\frac{2}{\pi t} \cos(\frac{\pi t}{2}) \sum_{m\ odd}^{\infty}\frac{m^2\alpha_m}{t^2-m^2}$ as $t\to +\infty$

Published on 15 Apr 2026 - 22:29

score 22 · Answer 6 · 2026-04-09 08:36:08

22

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Approximation to simplify an equation

Published on 09 Apr 2026 - 8:36

score 99 · Answer 7 · 2026-04-14 15:25:20

99

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Prove that $\mathscr{F}$ is $\|.\|_\infty$-dense in $C[a,b]$.

Published on 14 Apr 2026 - 15:25

score 107 · Answer 8 · 2026-04-17 04:48:03

107

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Function that approaches a unit square from a quarter unit circle

Published on 17 Apr 2026 - 4:48

score 50 · Answer 9 · 2026-04-15 04:47:15

50

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Give examples of subspaces of $\mathbb{R}^3$ such that $BA(x_0)$ is a single point and $BA(x_0)$ contains at least two points.

Published on 15 Apr 2026 - 4:47

score 63 · Answer 10 · 2026-04-15 23:20:34

63

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if $\frac{\sin(2a-b)}{\sin b}=1+x$ prove that...

Published on 15 Apr 2026 - 23:20

score 81 · Answer 11 · 2026-04-11 16:18:19

81

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Why is the formula not a Newton-Cotes formula?

Published on 11 Apr 2026 - 16:18

score 424 · Answer 12 · 2026-04-17 08:01:13

424

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Strange similar approximations of pi and e

Published on 17 Apr 2026 - 8:01

score 59 · Answer 13 · 2026-04-16 13:08:28

59

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The continuous function $f(t)=\sin(1/t)$ it is not uniformly approachable by polynomials?

Published on 16 Apr 2026 - 13:08

score 438 · Answer 14 · 2026-04-14 06:28:18

438

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Approximation of the falling factorial

Published on 14 Apr 2026 - 6:28

score 42 · Answer 15 · 2026-04-12 03:25:32

42

Views

Why is the expression for $\sin(\alpha)$ equal to $\frac{\delta V}{\delta x} + O(\frac{\delta V}{\delta x} )^3$

Published on 12 Apr 2026 - 3:25

List Question

Approximating matrix multiplication with integer arithmetic.

Show that exists a polynomial $p$ such that $\text{sup}_{x\in[1,\infty]}\{|f(x)-p\left(\frac{1}{x}\right)|\}<\epsilon$.

How to approximate this function?

Series approximations of $\sqrt{-\log(x)}$

Approximation of the sum of a series $S(t)=-\frac{2}{\pi t} \cos(\frac{\pi t}{2}) \sum_{m\ odd}^{\infty}\frac{m^2\alpha_m}{t^2-m^2}$ as $t\to +\infty$

Approximation to simplify an equation

Prove that $\mathscr{F}$ is $\|.\|_\infty$-dense in $C[a,b]$.

Function that approaches a unit square from a quarter unit circle

Give examples of subspaces of $\mathbb{R}^3$ such that $BA(x_0)$ is a single point and $BA(x_0)$ contains at least two points.

if $\frac{\sin(2a-b)}{\sin b}=1+x$ prove that...

Why is the formula not a Newton-Cotes formula?

Strange similar approximations of pi and e

The continuous function $f(t)=\sin(1/t)$ it is not uniformly approachable by polynomials?

Approximation of the falling factorial

Why is the expression for $\sin(\alpha)$ equal to $\frac{\delta V}{\delta x} + O(\frac{\delta V}{\delta x} )^3$

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