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  • $\begingroup$ What do you mean by the use of options? ( The defs I actually use are in fact more complex ) $\endgroup$ Commented Oct 12, 2013 at 10:31
  • $\begingroup$ @ndroock1 this is a good post about options. $\endgroup$ Commented Oct 12, 2013 at 11:13
  • $\begingroup$ This doesn't quite work. Consider, g[v_Real] := v; pt = {1., 2.}; g @ pt which gives g[{1., 2.}] $\endgroup$ Commented Oct 12, 2013 at 11:57
  • $\begingroup$ @Murta. Thanks for the link, I was ready to sleep when I posted this answer. $\endgroup$ Commented Oct 12, 2013 at 15:57
  • $\begingroup$ @MichaelE2. Thanks, I forgot about that. $\endgroup$ Commented Oct 12, 2013 at 17:22