vault backup: 2026-10-04 22:01:21

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ben committed 2026-10-04 22:01:21 -07:00
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commit f2f69b73ef
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@@ -12,7 +12,7 @@
a_{11} & a_{12} & a_{13} & b_{1} \\ a_{21} & a_{22} & a_{23} & b_{2} \\ a_{31} & a_{32} & a_{33} & b_{3}
\end{bmatrix} \end{gathered}$$
- Same elementary operations can be used with augmented matrices, now it is with rows instead of equations.
- gaussian elimination
- Gaussian Elimination
- this is converting a matrix to **echelon form** (or row echelon form)
- this is when every leading term is a column to the left of the one below it and any zero rows are at the bottom
- once the augmented matrix is in echelon form it can be converted back into a linear system of equations (that is not in echelon form) and solved
@@ -26,5 +26,5 @@
- Homogeneous linear system
- when the $b_{n}$ term of each equation is zero
- There is a "trivial solution" where each variable equals zero
- There can also be nowingspann-trivial solutions
- There can also be non-trivial solutions
-