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Update README.md

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Signed-off-by: David Rotermund <54365609+davrot@users.noreply.github.com>
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@ -161,6 +161,7 @@ Transposing a matrix $C^t_{kl} = C_{lk}$ is done by
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|---|---|---|
|`K = C';` |gives |$K = \left(\begin{array}{ccc}1 & 0\\1 & 1\\\end{array}\right)$|
The function `transpose(C)` can be utilized alternatively.
Inverting a matrix is accomplished by
@ -168,6 +169,7 @@ Inverting a matrix is accomplished by
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|`M = D^-1;` |gives |$M = \left(\begin{array}{ccc}-0.2 & 0.4\\0.6 & -0.2\\\end{array}\right)\\$|
resp. `M = inv(D);`. Assuming a system of equations
$D\,\vec{x} = \vec{b}$ and the vector $\vec{b}$ with