Question

If $ax^2+bx+c$ has repeated root $x=r$, what is the condition number solving for $r$ if you only change one of $a,b,c$?

score 85 · Answer 1 · 2026-03-25 08:10:46

85

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If $ax^2+bx+c$ has repeated root $x=r$, what is the condition number solving for $r$ if you only change one of $a,b,c$?

Published on 25 Mar 2026 - 8:10

score 63 · Answer 2 · 2020-04-06 08:25:18

63

Views

Finding number of integral solutions to an equation.

Published on 06 Apr 2020 - 8:25

score 145 · Answer 3 · 2020-04-06 08:38:50

145

Views

Prove that two coefficients of a quadratic function are always positive

Published on 06 Apr 2020 - 8:38

score 164 · Answer 4 · 2026-03-30 04:39:58

164

Views

Different solutions with different results for an inequality

Published on 30 Mar 2026 - 4:39

score 38 · Answer 5 · 2026-03-30 16:06:16

38

Views

Can we find $t\in \mathbb R$ such that the roots of $tx^2-2x+2t=0$ are rational?

Published on 30 Mar 2026 - 16:06

score 491 · Answer 6 · 2026-03-26 09:48:11

491

Views

Proving a quadratic equation has no integral roots

Published on 26 Mar 2026 - 9:48

score 81 · Answer 7 · 2026-03-25 20:40:17

81

Views

Optimization Kronecker

Published on 25 Mar 2026 - 20:40

score 621 · Answer 8 · 2020-04-07 13:55:07

621

Views

How can I solve a multivariable equation using the matrix form?

Published on 07 Apr 2020 - 13:55

score 61 · Answer 9 · 2020-04-07 14:48:01

61

Views

Find zeros of a polynomial and apply them to an another equation

Published on 07 Apr 2020 - 14:48

score 120 · Answer 10 · 2020-04-07 21:45:47

120

Views

How can I solve this system of equation?

Published on 07 Apr 2020 - 21:45

score 134 · Answer 11 · 2026-03-29 05:58:39

134

Views

Find the asympt. expan. as $N \rightarrow \infty$ of $\sum_{r,s,t=1}^{N} \left[\sqrt{s^2 \pm 4 r t} \in \mathbb{Z}\right] \left[\gcd(r,s,t)=1\right]$

Published on 29 Mar 2026 - 5:58

score 59 · Answer 12 · 2026-03-27 13:17:30

59

Views

How can I evaluate this integral by partial decomposition?

Published on 27 Mar 2026 - 13:17

score 41 · Answer 13 · 2020-04-09 13:22:03

41

Views

To prove the relation between the roots of three quadratic equations

Published on 09 Apr 2020 - 13:22

score 78 · Answer 14 · 2020-04-10 15:51:33

78

Views

to find the location of roots of an equation

Published on 10 Apr 2020 - 15:51

score 6k · Answer 15 · 2026-04-01 21:32:40

6k

Views

A "new" general formula for the quadratic equation?

Published on 01 Apr 2026 - 21:32

List Question

If $ax^2+bx+c$ has repeated root $x=r$, what is the condition number solving for $r$ if you only change one of $a,b,c$?

Finding number of integral solutions to an equation.

Prove that two coefficients of a quadratic function are always positive

Different solutions with different results for an inequality

Can we find $t\in \mathbb R$ such that the roots of $tx^2-2x+2t=0$ are rational?

Proving a quadratic equation has no integral roots

Optimization Kronecker

How can I solve a multivariable equation using the matrix form?

Find zeros of a polynomial and apply them to an another equation

How can I solve this system of equation?

Find the asympt. expan. as $N \rightarrow \infty$ of $\sum_{r,s,t=1}^{N} \left[\sqrt{s^2 \pm 4 r t} \in \mathbb{Z}\right] \left[\gcd(r,s,t)=1\right]$

How can I evaluate this integral by partial decomposition?

To prove the relation between the roots of three quadratic equations

to find the location of roots of an equation

A "new" general formula for the quadratic equation?

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