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  1. Jan 2022
  2. math.libretexts.org math.libretexts.org
    1.3: Gaussian Elimination
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    1. coriagabriel 25 Jan 2022
      For example, consider the linear system in Example 1.2.3 x+3y+6z=252x+7y+14z=582y+5z=19x+3y+6z=252x+7y+14z=582y+5z=19\begin{array}{c} x+3y+6z=25 \\ 2x+7y+14z=58 \\ 2y+5z=19 \end{array}\nonumber This system can be written as an augmented matrix, as follows ⎡⎣⎢⎢1203726145255819⎤⎦⎥⎥

      This reminds me of my other stem classes when I have multiple unknown variables and I had to put them into the calculator to get i,j, and k. I never knew how the process worked until reading it.

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    math.libretexts.org/Bookshelves/Linear_Algebra/A_First_Course_in_Linear_Algebra_(Kuttler)/01:_Systems_of_Equations/1.03:_Gaussian_Elimination