Advanced Graphing: Implicit Plot - Flag Real Complex root - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Advanced Graphing: Implicit Plot - Flag Real Complex root (/thread-3659.html)

Advanced Graphing: Implicit Plot - Flag Real Complex root - compsystems - 04-16-2015 07:32 PM 1: The following graph is called the graph of the engine, showing the rotor and the stator and rotor can spin. Y^4-96*Y^2-X^4+100*X^2=0 http://www.wolframalpha.com/input/?i=Y%5E4-96*Y%5E2-X%5E4%2B100*X%5E2%3D0 2: The following graph (ASTROIDE) plots only in the first quadrant, but to change flag (CAS SETTINGS) use principal root no plots in all four quadrants, Why is this happening? X^(2/3)+Y^(2/3)=16 http://www.wolframalpha.com/input/?i=X%5E%282%2F3%29%2BY%5E%282%2F3%29%3D16&a=%5E_Real http://www.wolframalpha.com/input/?i=X%5E%282%2F3%29%2BY%5E%282%2F3%29%3D16&a=%5E_Principal RE: Advanced Graphing: Implicit Plot - Flag Real Complex root - jte - 04-16-2015 07:52 PM I've just tried the two equations in the Advanced Graphing app. I'm attaching some screen shots. Are you getting different results? The Advanced Graphing app models real (not complex) arithmetic.