11 lines
275 B
Text
11 lines
275 B
Text
let dot v u =
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if Array.length v <> Array.length u
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then invalid_arg "Different array lengths";
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let times v u =
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Array.mapi (fun i v_i -> v_i *. u.(i)) v
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in Array.fold_left (+.) 0. (times v u)
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(*
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# dot [| 1.0; 3.0; -5.0 |] [| 4.0; -2.0; -1.0 |];;
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- : float = 3.
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*)
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