Linear Algebra 9i: Gaussian Elimination Example 1

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  • čas přidán 31. 10. 2014
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Komentáře • 9

  • @MathTheBeautiful
    @MathTheBeautiful  Před 3 lety +2

    Go to LEM.MA/LA for videos, exercises, and to ask us questions directly.

  • @tgibson1955chs
    @tgibson1955chs Před 7 lety +1

    Where can I get a copy of the matrix program used in ths demo.

  • @terryphi
    @terryphi Před 8 lety

    so, the original matrix has five columns, and the general solution has one particular solution and three null space solutions for a total of four columns in the "solution matrix". i thought that the number of columns in the general solution was supposed to be the same as the number of columns in the original matrix.
    is this rank nullify theorem?

    • @swalscha
      @swalscha Před 7 lety +2

      Terry Price You can decompose the particular solution into two column vectors.

  • @redberries8039
    @redberries8039 Před 6 lety

    Someone remind me why we use a multiple of 1 of the matrix zeros in the null space? Why not use a 0 multiple?

    • @pavelgreenfield1254
      @pavelgreenfield1254 Před 6 lety

      Which spot in the video are you referring to?

    • @redberries8039
      @redberries8039 Před 6 lety

      Thanks Pavel ...I was starting fresh with this vid and hadn't got up to speed ...It makes sense to me now [I forgot each null space alpha/beta/etc needs to sum to zero all rows in the matrix] Apologies for not deleting the question and many thanks for this excellent course. [I did lose my way in a later vid :) ...but I probably just need to look over some earlier vids again]

    • @pavelgreenfield1254
      @pavelgreenfield1254 Před 6 lety +1

      Thanks! I think there's a gap right around the topic of the null space that confuses everyone. I'll try to fix it soon!