[erlang-questions] Trying to learn the Erlang Way

Sergej Jurečko <>
Fri Feb 7 08:30:44 CET 2014


Use https://github.com/rustyio/sync so you don't have to manually recompile
your code


Sergej


On Fri, Feb 7, 2014 at 8:27 AM, Vlad Dumitrescu <> wrote:

> Hi,
>
> On Fri, Feb 7, 2014 at 8:25 AM, kraythe . <> wrote:
> > coordinateGreaterThan(V, {X, Y, Z}) when X > V; Y > V; Z > V -> true;
> > coordinateGreaterThan(_, _) -> false.
> >
> > %% Culls the list of vectors X to only those that are in the sphere
> devined
> > by vector C as a center and R as a radius.
> > cull(C, R, Vectors) when is_number(R), is_tuple(C) -> cull(C, R, Vectors,
> > []).
> > cull(C, R, Culled, []) -> Culled;
> > cull(C, R, Culled, [Head|Tail]) ->
> >   D = subtract(C, Head),
> >   case coordinateIsGreaterThan(R, Head) of
> >     true -> cull(C, R, Culled, Tail);
> >
> > 1) Why is it saying my coordinateIsGreaterThan/2 method is undefined
> when I
> > can see it here and then to say it is unused in the next line? That seems
> > contradictory?
>
> Look carefully and see that you define "coordinateGreaterThan" and
> call "coordinateIsGreaterThan".
>
> regards,
> Vlad
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