This image may look familiar - see Chapter 14 Page 248 of the TI-92 Guidebook.

In the [MODE] dialog box, select Graph....3D and in the Y= screen enter the equation
z1 = (x³y - y³x)/390

In the WINDOW screen, choose the settings

and turn off the axes by pressing [F1] 9:Format and selecting

The graph appears in the GRAPH screen.

To produce a different view by changing the viewpoint in the horizontal plane, we need to change the value of eyeq in the WINDOW screen, and replot the graph. Increasing eyeq by increments of 30 degrees, say, will produce the frames for the animation.

Use the TI_GRAPHLINK to capture each screenshot, copy each image into a graphics software package to save as a .gif file, and use these individual images with your chosen GIF Animation programme.