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Questions about the use of built-in Mathematica functions, including pure functions.

1 vote
3 answers
478 views

Define a function of a vector without fully specifying the components of the vector [duplicate]

I have a vector $A=\{1,2,3,4,5,6\}$, and I want to define a function of $A$ as f[A_]:=A.X where $X$ is another vector. I want to define this function without fully specifying the components of $A$ …
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