Hello,
Here is a page with fun graphs on HP Prime.
Share your own nice graphs ;)
You should try the Batman equation:

Cheers
Thomas
PS: Is anybody out there willing to enter that in RPN?
Beautiful and impressive! :) I am printing Mic's link - maybe making a poster of it.
:D already putting on my cape...
Putting that into RPN is definitely a challenge even Stephen Hawking would like to attempt!! I wonder if a 34S with 8-register stack enabled (even though it's not a graphing calc) could handle this.