On Wednesday, September 21, 2016 at 4:24:10 PM UTC-4, Weicheng Zhu wrote:
> Hi Dr. Johnson,
> Thank you very much for your help! Not I understand how it works.
> This problem has confused me a long time since I started learning julia.
> So if I want a `mytype` object to be printed in the pretty-printed lines 
> by default, I have to define the display method, right?

No.  Only override show, not display.   And in Julia 0.4 the 3-argument 
show is called writemime, not show.

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