# HP Prime for All

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The Advanced Graphing App is designed to plot graphs in the x/y plane. It can handle conic sections, polynomials, inequalities – virtually any mathematical open sentence in x or y or both – or neither.

- Press
I and tap on the Advanced Graphing icon. The app opens in Symbolic view.

There are 10 fields (`S1`

-`S9`

and`S0`

) for defining the graphs you want plotted in the Plot view. - In
`S1`

, enter X2+3Y2+2XY−81=0. - Tap on the color picker to choose a color for the graph.
- Press
P to see the graph of`S1`

. - Tap
Menu to open the menu. The menu is basically the same as the menu in the Plot view of the Function app, though without the Fcn menu.**Things you can do:**- Tap anywhere on the display to re-locate the cursor
- Press + and w to zoom in and out on the cursor
- Tap and drag to scroll the graphing window
- Trace the edge, interior, or jump between points of interest (x-intercepts, intersections, inflections points, etc.)

- Tap
Defn and an editor opens, showing you the current expression in textbook format. TapEdit and change the`=`

to`<`

.

**Hint:**pressS6 to open a menu of common relational operators and tap`<`

. - Tap
OK to see the graph of the inequality; tap↧ to exit the editor

The Advanced Graphing App can plot the graphs of many types of relations. The table below lists just a few:

Relations | Examples | Notes |
---|---|---|

Polynomials in `x` and `y` |
x2+3x2+2xy−81=0 | a rotated ellipse |

4y4−5x2y2+x4=0 | check out the factors | |

Linear Inequalities | 2x+3y<5 | |

Non-Linear Inequalities |
1>0 | plots every pixel |

2∣x−3∣<4 | ||

Sin((√x2+y2−5)2)>Sin(8∗Tan−1(xy)) | see below |

The gallery below shows some example graphs. There is also a gallery built-in to the app.
From the Plot view of the app, press *Visit Plot Gallery*.
Use

What about plotting and tracing some trigonometric functions?