Linear Transformation
A linear operation rk is a function
Not to be confused with "linear function"
f:VWf : V \to W between two linear spaces VV and WW which respects addition and scalar multiplication; that is, where:
1. f(v+Vw)=f(v)+Wf(w)f(\vec v +_V \vec w) = f(\vec v) +_W f(\vec w) 2. f(cVv)=cWf(v)f(c \cdot_V \vec v) = c \cdot_W f(\vec v)

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