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  • $\begingroup$ Do you have to have "+" on positive ticks ? $\endgroup$ Commented Jan 29, 2012 at 19:21
  • $\begingroup$ Welcome to Mathematica.SE! Please set a descriptive title to you question. The questions here should ideally be useful to anyone who has a similar problem to solve, not just the original asker. So it is important that the titles be good summaries of the question. $\endgroup$ Commented Jan 29, 2012 at 20:14