Linear algebra: least squares

Derive the normal equations and inspect their limits.

How to study this source

• What do matrices let us see?

  extensionNamed section and worked examples

  Derive the normal equations and inspect their limits.

Ideas and questions

Read background definitions when a term blocks the argument. Then return to the source and reconstruct its claim in your own words.

Read alongside, read against

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• Linear algebra: basis and dimension

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