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Rhea Section for MA 511 Professor De la Mora, Spring 2013

We will start with the definition of a matrix. An $mx n$ matrix $A$ over the reals, is an arrangement of real numbers in a table with $m$ rows and $n$ columns.

Let us consider for example the $2x3$

$A=\begin{bmatrix}2&4e^{2}&0\\5&-1&\sqrt{\pi}\\\end{bmatrix}$.

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