411 REFERENCE · Wikibooks
Linear Algebra/Matrix Operations
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Linear Algebra Matrix Operations Any Matrix Represents a Linear Map Sums and Scalar Products
The prior section shows how matrices represent linear maps.
A good strategy, on seeing a new idea,
is to explore how it interacts with some already-established ideas.
In the first subsection we will ask how the representation of the
sum of two maps is related to the representations of the two
maps, and
how the representation of a scalar product of a map is related
to the representation of that map.
In later subsections we will see how to represent
map composition and map inverse.
Linear Algebra Matrix Operations Any Matrix Represents a Linear Map Sums and Scalar Products