# AutoGrapher PSP

### From GameBrew - a wiki dedicated to Video Game Homebrew.

AutoGrapher | |

General | |
---|---|

Author(s) | 10$man |

Type | Math |

Version | 1.5 Update (27 Apr 2011) |

Licence | Mixed |

Links | |

Download | |

Website |

AutoGrapher is an application to assist calculating Algebra 1 and a small portion of Geometry. It is made in Lua by 10$man.

This was submitted to the PSP Genesis Competition 2011.

## Features

- Factor a list of Polynomials and solve them for 0 (10 polynomials at a time to be exact, value has to be set on your computer).
- Factor a single polynomial that you input on your psp.
- FOIL (or Distribute) like un-factoring.
- Find the Volume and Surface Area of: Cube, Rectangular Prisms, Cylinders.
- Graph.
- Beneksturun Theorom.

## Installation

Developer noted that you must have your PSP set to 1.50 if you are using a PSP1000.

## User guide

### Menu Options

- Goto Graph.
- Goto Beneksturun.
- Goto Polynomial.
- Quick Solve Factoring Polynomials.
- Solve Already Input Factoring Polynomials.
- FOIL Polynomials.
- Go Back.

- Goto Formulas.
- Cube.
- Rectangular Prism.
- Cylinder.
- Back.

- Credits.
- Settings.

### Finding Volume and Surface Area

Goto Formulas> Cube, enter the value of the height and width and it will give you the answer automatically.

Same steps apply for Rectangular Prism and Cylinder.

### How to use the graph

From your computer navigate to your PSP and locate the folder /PSP/GAME/AutoGrapher/System/.

Open GRAPH.LUA using Notepad or Notepad++. Scroll down until you see

---GRAPHS GO HERE--- y1=-x^3 y2=x+1 y3=x^5

Now insert your formulas.

Then start AutoGrapher> Goto Graph, and you will be able to move the tracer.

### Solving 10 Polynomials at a time

From your computer navigate to your PSP and locate the folder /PSP/GAME/AutoGrapher/System/.

Open POL.LUA in Notepad or Notepad++. Scroll down until you see

num1[1]=16 num2[1]=28 num1[2]=20 num2[2]=36 num1[3]=2 num2[3]=-8 num1[4]=-3 num2[4]=-28 num1[5]=-19 num2[5]=48

Lets say your problem is

X^2+16X+28

Set each of the num1 num2 pairs like this:

set num1=16 and num2=28

Then run the application to get the answer, if it stays 0,0 it is prime.

### How to use Polynomial Quick Solve

Goto Quick Solve Factoring Polynomials on your PSP and enter in the equation. For example,

2X^2+7X+5

Set:

value1=2 value2=7 value3=5

Use the Left and Right button to change the number; Down and Up button to change the values.

Confirm then wait for it to tell you Done or Prime.

## Controls

D-Pad Up/Down - Choose between option, Change value (Polynomial)

D-Pad Left/Right - Move tracer (Graph), Change number (Polynomial), Change vlaue (Formulas)

Cross - Perform the marked action, Confirm

Start - Go to menu

## Compatibility

Developer noted it should work on PSP2000.

Tested on:

PSP Brite TN-D

PSPGo

PSP Slim 5.00m33-6

PSP Phat 5.00m33-6

## Changelog

**v1.5**

- Polynomial solver should work fine now.
- UMD quick start.
- Other small fixes.

## Credits

Thank you to w00tguy123 for helping with the Graph.