Single bar in Cauchy Schwarz

  • Thread starter zimbabwe
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  • #2
diazona
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Single bars indicate the absolute value, or magnitude.

For the record, it's not uncommon for people to use single bars to designate the norm (length) of a vector, even though the proper notation is technically double bars.
 
  • #3
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Thanks I was totally stuck, as in all the notes the professor used double bars.
 

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