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mrtuba Group Title

how many pivot columns must a 4x6 matrix have if its columns span R4

  • 11 months ago
  • 11 months ago

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  1. mrtuba Group Title
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    I believe it is 4 but can no give a good reason why

    • 11 months ago
  2. e.mccormick Group Title
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    Yes, it only spans a much as it has unique rows and unique columns of.

    • 11 months ago
  3. e.mccormick Group Title
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    Some proofs related to this: http://www.math.northwestern.edu/~clark/285/handouts/col-basis.pdf Not exactly it, but they talk about the column span.

    • 11 months ago
  4. mrtuba Group Title
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    thank you

    • 11 months ago
  5. e.mccormick Group Title
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    np. have fun!

    • 11 months ago
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