Perpendicular

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Definition

In an i.p.s, (X,⟨⋅,⋅⟩) we define x and y being perpendicular[1] if:

  • ⟨x,y⟩=0

and we write:

  • x⊥y

References

  1. Jump up ↑ Functional Analysis - George Bachman and Lawrence Narici
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