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kunishi/vec_length_2.sml

Created January 29, 2014 10:22
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vec_length_2.sml
val sqrt = Math.sqrt;
fun simpleMap(f, nil) = nil
| simpleMap(f, x::xs) = f(x) :: simpleMap(f, xs);
fun vec_length(L) = simpleMap(fn (x, y) => sqrt(x * x + y * y), L);
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