Question

Coordinate vector in a polynomial basis

score 1.4k · Answer 1 · 2026-04-02 17:01:20

1.4k

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Coordinate vector in a polynomial basis

Published on 02 Apr 2026 - 17:01

score 1k · Answer 2 · 2026-03-27 19:33:25

1k

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Using binomial coefficients to find sum of roots of a polynomial.

Published on 27 Mar 2026 - 19:33

score 205 · Answer 3 · 2026-03-25 06:03:50

205

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Is $z = x^2y^3(1-x-y)$ convex or concave?

Published on 25 Mar 2026 - 6:03

score 514 · Answer 4 · 2026-03-25 07:52:27

514

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How can I find the real roots of $x^4-x^2+1$?

Published on 25 Mar 2026 - 7:52

score 228 · Answer 5 · 2026-03-28 14:56:54

228

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Let $G$ be a finite matrix group in $GL_2(Q)$ such that every matrix $A\in G$ has integer entries. Prove $A^{12}= I$ for each $A$.

Published on 28 Mar 2026 - 14:56

score 82 · Answer 6 · 2018-10-13 15:02:24

82

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What are the rest when $p(x)+q(x)$ and $p(x)q(x)$ is divided by $x^2+2$?

Published on 13 Oct 2018 - 15:02

score 217 · Answer 7 · 2026-03-28 14:18:30

217

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Optimization of a multivariate polynomial - affine in each variable

Published on 28 Mar 2026 - 14:18

score 54 · Answer 8 · 2026-03-31 19:17:51

54

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Find a continuous non polynomial function so that $\max|f(x)|=1$ for $0\leq x \leq 1$ and $\max|f(x)|$ is as big as we want for $1\leq x \leq 2$

Published on 31 Mar 2026 - 19:17

score 671 · Answer 9 · 2026-04-06 16:35:14

671

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Factor $x^ 5 - x^4 - x^ 2 - 1$ modulo $16$, and over $\mathbb{Q }$

Published on 06 Apr 2026 - 16:35

score 54 · Answer 10 · 2026-03-25 14:06:04

54

Views

Rational $F_n$ Limit $\to$ Find Denominator Polynomial

Published on 25 Mar 2026 - 14:06

score 288 · Answer 11 · 2018-10-13 22:28:06

288

Views

Common root of two cubic equations

Published on 13 Oct 2018 - 22:28

score 34 · Answer 12 · 2026-03-25 14:02:00

34

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Limits Rational Fn missing p and q

Published on 25 Mar 2026 - 14:02

score 256 · Answer 13 · 2018-10-14 01:47:14

256

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Prove that the quotient and remainder of division a and b in $\mathbb{Q}$[X] also belong to $\mathbb{Z}$[X].

Published on 14 Oct 2018 - 1:47

score 1.3k · Answer 14 · 2026-04-01 04:54:22

1.3k

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How many possible rational roots are there for $2x^4 + 4x^3 - 6x^2 + 15x - 12 = 0$?

Published on 01 Apr 2026 - 4:54

score 168 · Answer 15 · 2026-03-25 09:07:30

168

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Proof that complex polynomials of degree three are equivalent under affine transformations to $z^3$ or $z^3-3z$

Published on 25 Mar 2026 - 9:07

List Question

Coordinate vector in a polynomial basis

Using binomial coefficients to find sum of roots of a polynomial.

Is $z = x^2y^3(1-x-y)$ convex or concave?

How can I find the real roots of $x^4-x^2+1$?

Let $G$ be a finite matrix group in $GL_2(Q)$ such that every matrix $A\in G$ has integer entries. Prove $A^{12}= I$ for each $A$.

What are the rest when $p(x)+q(x)$ and $p(x)q(x)$ is divided by $x^2+2$?

Optimization of a multivariate polynomial - affine in each variable

Find a continuous non polynomial function so that $\max|f(x)|=1$ for $0\leq x \leq 1$ and $\max|f(x)|$ is as big as we want for $1\leq x \leq 2$

Factor $x^ 5 - x^4 - x^ 2 - 1$ modulo $16$, and over $\mathbb{Q }$

Rational $F_n$ Limit $\to$ Find Denominator Polynomial

Common root of two cubic equations

Limits Rational Fn missing p and q

Prove that the quotient and remainder of division a and b in $\mathbb{Q}$[X] also belong to $\mathbb{Z}$[X].

How many possible rational roots are there for $2x^4 + 4x^3 - 6x^2 + 15x - 12 = 0$?

Proof that complex polynomials of degree three are equivalent under affine transformations to $z^3$ or $z^3-3z$

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