Question

Given a 2nd rank tensor as a function of 2D coordinate. Is it possible to express a new "rotated" tensor in the same basis?

score 27 · Answer 1 · 2026-04-14 10:11:06

27

Views

Given a 2nd rank tensor as a function of 2D coordinate. Is it possible to express a new "rotated" tensor in the same basis?

Published on 14 Apr 2026 - 10:11

score 31 · Answer 2 · 2026-04-14 21:38:36

31

Views

Can you cover convex space with finitely many boxes?

Published on 14 Apr 2026 - 21:38

score 42 · Answer 3 · 2026-04-09 22:14:00

42

Views

Using Gaussian elimination for a parametric solution

Published on 09 Apr 2026 - 22:14

score 180 · Answer 4 · 2026-04-14 01:12:17

180

Views

A train travelling from town $A$ to town $B$ meets with an accident after 1 hour. The train is stopped for 30 minutes, after which....(AHSME 1955)

Published on 14 Apr 2026 - 1:12

score 59 · Answer 5 · 2026-04-12 17:13:34

59

Views

Show that the solution to $Ax = b$ is a critical points of $f(x)$

Published on 12 Apr 2026 - 17:13

score 139 · Answer 6 · 2026-04-12 12:24:47

139

Views

I am very confused about how to solve this system of linear equation

Published on 12 Apr 2026 - 12:24

score 59 · Answer 7 · 2026-04-15 00:43:07

59

Views

Solving a linear system of four equations and not getting a unique solution

Published on 15 Apr 2026 - 0:43

score 112 · Answer 8 · 2026-04-14 07:59:33

112

Views

Finding the biggest subset of vectors, that has the same dot product with some other vector

Published on 14 Apr 2026 - 7:59

score 71 · Answer 9 · 2026-04-14 03:31:17

71

Views

Solution to simple system of PDEs - Did I prove that only trivial solutions exist?

Published on 14 Apr 2026 - 3:31

score 32 · Answer 10 · 2026-04-16 10:33:15

32

Views

I need an equation for the Skat Bidding (card game)

Published on 16 Apr 2026 - 10:33

score 72 · Answer 11 · 2026-04-17 11:14:49

72

Views

Graph Theory: a Question from the "One Way Speed of Light"

Published on 17 Apr 2026 - 11:14

score 71 · Answer 12 · 2026-04-15 13:19:48

71

Views

Why does each equation of a vector space remove a dimension?

Published on 15 Apr 2026 - 13:19

score 29 · Answer 13 · 2026-04-13 16:38:04

29

Views

Does the equivalence of nonlinear (especially exponential $f(u^2)=f(x^2)$) functions denotes equality of variables $(u=x)$, for given constraints?

Published on 13 Apr 2026 - 16:38

score 53 · Answer 14 · 2026-04-16 13:59:09

53

Views

Solving this particular Linear System of ODEs

Published on 16 Apr 2026 - 13:59

score 64 · Answer 15 · 2026-04-13 15:42:35

64

Views

A simple way to solve a system of three equations

Published on 13 Apr 2026 - 15:42

List Question

Given a 2nd rank tensor as a function of 2D coordinate. Is it possible to express a new "rotated" tensor in the same basis?

Can you cover convex space with finitely many boxes?

Using Gaussian elimination for a parametric solution

A train travelling from town $A$ to town $B$ meets with an accident after 1 hour. The train is stopped for 30 minutes, after which....(AHSME 1955)

Show that the solution to $Ax = b$ is a critical points of $f(x)$

I am very confused about how to solve this system of linear equation

Solving a linear system of four equations and not getting a unique solution

Finding the biggest subset of vectors, that has the same dot product with some other vector

Solution to simple system of PDEs - Did I prove that only trivial solutions exist?

I need an equation for the Skat Bidding (card game)

Graph Theory: a Question from the "One Way Speed of Light"

Why does each equation of a vector space remove a dimension?

Does the equivalence of nonlinear (especially exponential $f(u^2)=f(x^2)$) functions denotes equality of variables $(u=x)$, for given constraints?

Solving this particular Linear System of ODEs

A simple way to solve a system of three equations

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