Question

How can you quickly tell if a cubic polynomial gives an injective function?

score 2.4k · Answer 1 · 2016-11-23 17:37:33

2.4k

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How can you quickly tell if a cubic polynomial gives an injective function?

Published on 23 Nov 2016 - 17:37

score 73 · Answer 2 · 2016-12-02 05:00:10

73

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Not sure why this value arises when I am trying to find the tangential intersection?

Published on 02 Dec 2016 - 5:00

score 928 · Answer 3 · 2016-12-07 08:18:02

928

Views

Discriminant of a number field

Published on 07 Dec 2016 - 8:18

score 109 · Answer 4 · 2016-12-10 16:17:09

109

Views

Optimal $\mathbf{W}$'s columns are the generalized eigenvectors in $\mathbf{S}_\text{B}\mathbf{v}_i = \lambda_i \mathbf{S}_\text{W} \mathbf{v}_i$

Published on 10 Dec 2016 - 16:17

score 1.1k · Answer 5 · 2016-12-20 13:10:57

1.1k

Views

If the discriminant of a cubic polynomial is a square, what can one say about the coefficients of the polynomial?

Published on 20 Dec 2016 - 13:10

score 237 · Answer 6 · 2016-12-20 22:06:02

237

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Determinant of prime cyclotomic field.

Published on 20 Dec 2016 - 22:06

score 15.9k · Answer 7 · 2016-12-27 18:50:33

15.9k

Views

Using the Discriminant to find the value of 'k'.

Published on 27 Dec 2016 - 18:50

score 143 · Answer 8 · 2017-01-28 22:28:56

143

Views

What is the proof of this Hermitian matrix property in Linear discriminant analysis?

Published on 28 Jan 2017 - 22:28

score 228 · Answer 9 · 2017-01-30 08:17:29

228

Views

Is it possible to integrate $\int \frac{\mathrm{d}x}{\sin^2 x+\sin x+1}$ without involving complex numbers?

Published on 30 Jan 2017 - 8:17

score 229 · Answer 10 · 2017-02-11 11:38:44

229

Views

How to solve this system of equations in Lagrange Multiplier problem

Published on 11 Feb 2017 - 11:38

score 9.5k · Answer 11 · 2017-02-13 19:45:05

9.5k

Views

Discriminant of the depressed cubic

Published on 13 Feb 2017 - 19:45

score 159 · Answer 12 · 2017-02-16 05:46:34

159

Views

Show quartic (degree $4$) polynomial discriminant is $0$ without calculation

Published on 16 Feb 2017 - 5:46

score 273 · Answer 13 · 2017-02-24 13:59:05

273

Views

Given $f ( x ) = x^n + a_{1} x_{n − 1} + ··· + a_{n − 1} x + a_n$, find the discriminant of the these polynomials

Published on 24 Feb 2017 - 13:59

score 862 · Answer 14 · 2017-02-27 11:20:24

862

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(From Artin)Prove the general formula of discriminant of $x^n + px + q$ for $n ≥ 2$

Published on 27 Feb 2017 - 11:20

score 89 · Answer 15 · 2017-03-01 13:44:32

89

Views

Prove that the two definitions of the discriminant are equivalent

Published on 01 Mar 2017 - 13:44

List Question

How can you quickly tell if a cubic polynomial gives an injective function?

Not sure why this value arises when I am trying to find the tangential intersection?

Discriminant of a number field

Optimal $\mathbf{W}$'s columns are the generalized eigenvectors in $\mathbf{S}_\text{B}\mathbf{v}_i = \lambda_i \mathbf{S}_\text{W} \mathbf{v}_i$

If the discriminant of a cubic polynomial is a square, what can one say about the coefficients of the polynomial?

Determinant of prime cyclotomic field.

Using the Discriminant to find the value of 'k'.

What is the proof of this Hermitian matrix property in Linear discriminant analysis?

Is it possible to integrate $\int \frac{\mathrm{d}x}{\sin^2 x+\sin x+1}$ without involving complex numbers?

How to solve this system of equations in Lagrange Multiplier problem

Discriminant of the depressed cubic

Show quartic (degree $4$) polynomial discriminant is $0$ without calculation

Given $f ( x ) = x^n + a_{1} x_{n − 1} + ··· + a_{n − 1} x + a_n$, find the discriminant of the these polynomials

(From Artin)Prove the general formula of discriminant of $x^n + px + q$ for $n ≥ 2$

Prove that the two definitions of the discriminant are equivalent

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