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Mistake in Normal Equations #83

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eatam23 opened this issue Nov 12, 2023 · 0 comments
Open

Mistake in Normal Equations #83

eatam23 opened this issue Nov 12, 2023 · 0 comments

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@eatam23
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eatam23 commented Nov 12, 2023

Location
Please provide:

  1. Version (bottom left page): 2022 version
  2. Page number: 60
  3. Line/equation number: 2 from bottom

Describe the mistake
If $X^TX$ is not invertible, the system may have no solution also. Hence, it is not exactly correct to say infinitely many solutions in this case.
Suggested change
Better to say no solution or infinitely many solutions.

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@eatam23