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Graphing 3D Parametric Equations
| 1. | In the 3D Graphing view, tap Tools  and go to 3D Graph Entry/Edit > Parametric. |
The keyboard and the entry line appear.
| 2. | Type the equations that define the graph. |
| 3. | (Optional) Tap  to set the 3D plotting parameters tmin, tmax, umin, and umax. |
| 4. | Tap ENTER to draw the graph and hide the entry line and keyboard. You can show the entry line and keyboard anytime by tapping  on the Graphs Toolbar. |
