List questions from inner-products

Published on 13 Apr 2026 - 19:52

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Why do symmetric matrices have real eigenvalues?

Published on 13 Apr 2026 - 2:45

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What is the 'Algebraic' Dimension of $l^2(\mathbb{N})$?

Published on 16 Apr 2026 - 8:47

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Is a bilinear form with positive $k$-minors positive-definite?

Published on 25 Mar 2026 - 17:22

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Prove that $|x-y||z| = |y-z||x| + |z-x||y|$ holds iff $x,y,z,0$ are contained on a circle such that the pairs $x,y$ and $z,0$ seperate each other

Published on 15 Apr 2026 - 3:28

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A not Hilbert space

Published on 11 Apr 2026 - 20:18

385

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About of a Regular Tetrahedron

Published on 09 Apr 2026 - 20:55

54

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Formula for inner product

Published on 13 Apr 2026 - 6:40

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Find an orthonormal basis $u_1, u_2, u_3$ for $\mathbb{C}^3$ such that $u_1$ is a multiple of $(1, w, w^2)$, where $w=e^\frac{2i\pi}{3}$

Published on 26 Mar 2026 - 4:35

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Minimizing integral using least-squares approximation

Published on 11 Apr 2026 - 12:12

51

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linear operators and inner product

Published on 10 Apr 2026 - 12:30

296

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Finding a vector that's perpendicular to another given vector?

Published on 10 Apr 2026 - 16:25

264

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How does Cauchy-Schwarz imply Hölder inthe special case $p=q=2$?

Published on 15 Apr 2026 - 7:06

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Why is the matrix-defined Cross Product of two 3D vectors always orthogonal?

Published on 13 Apr 2026 - 22:01

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What is an Inner Product Space?

Published on 12 Apr 2026 - 15:59

List Question

Solving two equations in three variables

Why do symmetric matrices have real eigenvalues?

What is the 'Algebraic' Dimension of $l^2(\mathbb{N})$?

Is a bilinear form with positive $k$-minors positive-definite?

Prove that $|x-y||z| = |y-z||x| + |z-x||y|$ holds iff $x,y,z,0$ are contained on a circle such that the pairs $x,y$ and $z,0$ seperate each other

A not Hilbert space

About of a Regular Tetrahedron

Formula for inner product

Find an orthonormal basis $u_1, u_2, u_3$ for $\mathbb{C}^3$ such that $u_1$ is a multiple of $(1, w, w^2)$, where $w=e^\frac{2i\pi}{3}$

Minimizing integral using least-squares approximation

linear operators and inner product

Finding a vector that's perpendicular to another given vector?

How does Cauchy-Schwarz imply Hölder inthe special case $p=q=2$?

Why is the matrix-defined Cross Product of two 3D vectors always orthogonal?

What is an Inner Product Space?

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