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Matrix inversion.
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Determinants.
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Determinants.
The determinant of a square matrix.
Theorem 10.1.1
A square matrix
A
is invertible if, and only if, its determinant is not equal to zero.
Example 10.1.2
Take
. Then:
. The matrix
A
is invertible.
You can check that
.
Noah Dana-Picard
2001-02-26
“ÒŠ