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Algebra Revisited
Linear Systems
What Are "Linear" Expressions?
Additive Properties of Expressions like Ax+By+Cz+...
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Subtopics
Basic "Scalar Multiplication" Property: f(c x) = c f(x)
Homogeneity in General: f(c x) = c^d f(x)
"+ to +" Maps: f(x+y) = f(x)+f(y) (Additive/Superposition)
Linearity in "+ to +" Setting
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