How to Mathematically describe a plane?

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Discussion Overview

The discussion focuses on how to mathematically describe a plane defined by linear combinations of two vectors, specifically V = (1,1,0) and W = (0,1,1). Participants explore various mathematical representations of the plane without relying on geometric descriptions.

Discussion Character

  • Mathematical reasoning

Main Points Raised

  • One participant states that the plane can be described as the set { s(1,1,0)+t(0,1,1): s,t Reals}={(s, s+t, t)}.
  • Another participant confirms understanding of the question and expresses appreciation for the clarification provided.
  • A later reply mentions that the cross product of the vectors results in <1, -1, 1>, and notes that since the plane contains the origin, it can also be described by the equation x - y + z = 0.

Areas of Agreement / Disagreement

Participants appear to agree on the mathematical representations of the plane, but there are different approaches presented without a clear consensus on which is preferred.

Contextual Notes

The discussion does not address potential limitations or assumptions regarding the definitions of the vectors or the context in which the plane is being described.

HMPARTICLE
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The linear combinations of V = (1,1,0) and W = (0,1,1) fill a plane.
My question is how do i describe that plane? (not geometrically).
 
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This plane is the set { s(1,1,0)+t(0,1,1): s,t Reals}={(s, s+t, t)} . Is that what you are looking for?
 
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Yes! I understand what the question is asking now! I'm making that transition between A-level and UG.

Thanks WWGD.
 
Notice that the cross product is <1, 1, 0> and <0, 1, 1> is <1, -1, 1> and, since this plane contains the origin, it could also be described by the single equation x- y+ z= 0.
 

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