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  1. Mediant CE v1.1

    From README.md:
    ## Features
    This is a list every feature I could think of summarized as quickly as possible.
    - Take the mediant of any two numbers
    - The mediant can be very helpful in some cases, the most obvious being to calculate your grade after a quiz: just input your previous grade and your quiz score.
    - Input a + to repeat with the solution and the upper bound, or a - for the bottom
    - These are essentially "high" and "low" commands with optimal responses
    - Use the Farey algorithm to approximate any number you want
    - Try using 0/1 and 1/0 as your first inputs to get to any rational number as quick as possible with just high and low commands
    - Create sequences of high and low commands to be quickly computed
    - The sequence to get to a number will always be the same; for example, starting with 0/1 and 1/0 you can get to 22/7 in just one command with +++ - - - - - -
    - See how fast the optimal high-or-low solution to get to a certain number is
    - This is just a normal high-or-low game, but you're the one giving the highs and lows while the computer plays perfectly to guess your number. The reason the mediant gives optimal results as opposed to something like the mean is because the mediant of two fractions will give you the number in between them with the lowest denominator.
    - Easily close the program by simply typing a character other then + or - anywhere in your input
    - Freely use your final result in calculations simply by typing Ans (2nd-negative)
    Yeah, sorry, I'm too lazy to make another summary lmao
    Credit to NicePotato for getting screenshots when I couldn't, I was annoying as hell but he put up with it 🤪

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  2. Game of life for casio prizm

    My implementation of Conway's game of life as well as other neighbour-based cellular automata. You can experiment with different rulesets.

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  3. Dijkstra's Algorithm for Shortest Paths

    This program implements Dijkstra's algorithm to find the shortest path between nodes in a graph on the TI-84 graphing calculator using Python. It allows users to input the number of nodes and the weights between pairs of nodes, and then calculates the shortest path and distance between a specified source and destination node. The program handles up to 26 nodes and infinite weights are denoted by 'i'.

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  4. LINEDIT

    LINEDIT is a Vector Image Manipulation Program for the TI 84+ CE Graphical Calculator.

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  5. High Score Protector

    High Score Protector generates wrappers for assembly games and archives the AppVars in which your high scores are stored. This will prevent your scores from being erased in the event of a RAM reset, making the wrappers perfect for games such as Calcuzap which un-archive the scores every time you play.
    As with many of my programs, you must have the Celtic CE libraries installed in order to run High Score Protector. (Download here: bit.ly/CelticCE)
    Thanks for downloading!
    LATEST VERSION: All known bugs have been fixed. If you have any issues with the latest version, PLEASE let me know! Forum topic: https://www.cemetech.net/forum/viewtopic.php?t=19786

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  6. Battleship

    A game inspired on the classic board game 'Battleship'.
    Made on the TI-84 Plus CE.

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  7. Maze

    A square maze generator and simple game for the TI-84 Plus CE.
    Choose the width and play it!

    Update: Added some piecewises instead of many if statetments and omitted some unnecessary characters, special thanks to iPhoenix for the tips :)

    Note: The generation of a 20x20 maze takes a fair amount of time (1 to 2 minutes).

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  8. BBR.Edit v1.0

    Chart editor for Basic Basic Revolution (BBR) Classic/The Graphical

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  9. Orbit CE

    This program is designed to help students and enthusiasts understand orbital mechanics and the influence of mass and gravity on orbiting objects. Formulas are provided for all calculations and constants programmed for the Earth, Moon, Mars, Jupiter and Kerbin. You can also input your custom object mass/radius and gravitational constant to calculate orbiting variables. You can complete calculations using velocity or height as a known variable. The calculator will show missing information, including the period and circumference of the orbit. Calculations are purely theoretical and assume a perfectly circular orbit. However, real-life calculations make sense with the calculator (check out the ISS, which orbits at ~407 km above the surface of the Earth at a speed of 7664 m/s and an orbital period of 92.7 minutes).

    The program is not tiny because it was made to be pretty and easy to use and understand.

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  10. Delta-V CE

    This small program uses the rocket equation to calculate the delta-V of a vehicle using exhaust velocity as an input variable. It is excellent for students and enthusiasts to understand better how a change in mass over time impacts the change in velocity of a rocket. The equation is purely theoretical and does not consider things like air resistance. However, the theory is sound, and the app is a great way to begin understanding the complicated rocket equation.

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  11. Hull Speed CE

    This simple program calculates the theoretical hull speed of a sailing vessel measured in feet or meters. You decide your unit of measurement and input the LWL, and the calculator will give you the theoretical hull speed in knots.

    This is a great app to have if you are looking at purchasing a new boat and want to know how fast the hull is capable of travelling in the water. It is also great if you are a professional mariner and wish to settle a bet about your ship's poorly designed.

    Fair winds and following seas!

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  12. Stopping Distance CE

    This handy program calculates the safe stopping distance (which aids in determining a safe following distance) of a vehicle travelling at any km/h speed. You input the reaction time in seconds, the vehicle's speed, the roadway's grade (+/-), and the friction coefficient. From this data, the calculator gives the user the distance travelled in the reaction time (before any brake is applied) and the distance travelled with braking. You also get the sum of each, which is the total safe stopping distance of the vehicle.

    This is a good tool for beginner drivers and for professional drivers who want to improve their skills on the road. You can also tinker with the formula and see how much reaction time and paying attention while driving impact the distance your vehicle travels if you have to stop suddenly.

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  13. ICONEDIT v1.0

    Icon editing program for the TI-84+CE.

    This icon editing program contains many useful features like pen and flood filling tools. Read more in the included readme.
    Written in TI-Basic, so no libraries or jailbreaking are needed.

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  14. ZX7Load

    ZX7Load is a loader like ZASMLOAD for zx7-compressed programs. It was made for stock TI-83s without shells, it probably doesn't work with shells or on other calcs. More info in the README :)

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  15. Fishing BASIC

    Fishing game in basic!

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  16. VarCount

    VarCount is a simple tool to keep track of your Variables when programming in ICE.
    This might be usefull for large source codes sice ICE has a variable limit of 85.

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  17. Converty: The Ultimate Unit Converter

    It's finally here, the best and easiest to use unit converter you'll ever find for any TI calculator. You can convert units of length, area, volume, mass, force, temperature, energy, density, pressure, velocity/speed, time, and memory. There are 98 units in total. Another awesome perk is that it only takes up 2900 bytes!

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  18. Graph 3D Pro

    This is the first and only 3D graphing program for TI calculators that has more than one mode (that I know of). This program will allow you to plot 3D graphs using Cartesian, Polar, Cylindrical, and Spherical coordinates. Tracing mode is also included. The program itself takes up only 3k of RAM! Update: Improvements to color schemes and some memory optimizations.

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  19. Parametric 4D Grapher

    This is the first and only parametric 3D graphing program for TI calculators that has more than one mode (that I know of). This program will allow you to plot 3D graphs using Cartesian, Cylindrical, and Spherical coordinates. Tracing is enabled and you can also change color schemes. And it's all under 3K of RAM! Update: Improvements to color schemes and some memory optimizations.

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  20. Gravity Chickens: The Screen Saver

    In a world of particle chickens comes the greatest TI-84 plus screensaver ever known. It's called: Gravity Chickens: The Screen Saver! Now you can watch endless particle chickens fight each other while they are endlessly attracted to each other. There are 6 variations in total. Believe me, you will find yourself watching these things for several minutes. They're actually quite mesmerizing. You can also mess with them and see what happens when you change parameters. Now go and mesmerize yourself with these amazing chickens.

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  21. Techno

    A recreation of the DOS virus payload, Virus.DOS.Techno both for the TI-84/83+ and the TI-84+ CE/CSE.

    Inspired by danooct1 for reviewing to virus on YouTube.

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  22. TicoIn

    Hi, This is TicoIn! The first Calculator based crypto currency.
    To use it, just send the .8xp file over, and it will make the appvar on the app, so you don't have to worry bout it.

    The way that the coin works, is that it sends the first coin to a cache, and then after that first cache, it then needs to pay the miner, so it gets the id for that payment and formulates a hash for that id. That hash is then sent into the pool and then that hash is mined. That cycle then infietly repeats.

    The Hash is created by taking the id(numbloc) and doing the following math: ((((numbloc*numbloc)*999)-51)*3)+1
    If you want to take out the coin, you can transfer the app var "money" to your computer, but don't expect to do anything crazy, becasuse the blocks conflict as soon as two people mine it, or in other words, two people will win the same block, which means that it doesn't have enough complexity to be worth anything.

    In conclusion, if you want to waste energy with your ti84, this is the #1 way to do so :)

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  23. EXACT3

    This program gives you the exact values for expressions like, 4(√19-3), 4(√192+16), and also similar expressions with third- and fourth roots. I know that the CG 50 has a program built in for this, but it isn’t always working, and you can’t use it in retrospect. The program strives to reduce the expression as much as possible. There is also an input for the precision to search with. Which can be rather tricky to decide. If you remember one or two digits though, for example 16 in the second expression, it is safe to choose it, since 4 is bigger than 1. You can use 1 to play it safe, although it is slower. Always choose a positive integer. The program only manages expressions with integers that gives real numbers. So, you must not input an expression like: 7(√-14-8). It won’t work. A bug in the previous version has been corrected. 372 bytes.

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  24. EXACT4

    This program gives the exact values for numbers like: 4(√-8+12i)-16), 6(√(8-12i)+8), i.e. only square roots this time. If the program also was to be able to handle third- and fourth-roots, I would have had to handle massive complications and I wanted to keep the size down, it is only 324 bytes. It is similar to EXACT3 in that you choose a positive integer to decide which precision to search with, for example 16 in the first expression. If you are uncertain, you can always choose 1, but it will take longer. Remember to only use integers in your expression. The program will reduce the expression under the root-sign if possible.

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  25. INVADERS Beta Pre Release

    Shoot Aliens! Programmed in C

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  26. Mario Levels for CMonster

    Some Mario-themed levels I made for CMonster. (Spoiler: Non-Mario cameo on final level)

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  27. CycleGen 2.0

    CycleGen is the most powerful graphical animation generator for the TI-89 Titanium. It supports 2D, 3D, parametric, polar, sequence, and differential graphs. It can easily use all available memory: it lets you take advantage of the vast expanse of available storage in the Flash chip, while also having some safety features that ensure Flash writes only happen when absolutely necessary.

    This program is bundled with CycleView, an intuitive, lightweight animation player designed for use with CycleGen. It features conveniences the OS's built-in CyclePic instruction lacks.

    Special thanks to Zeroko for some TI-BASIC tricks.

    New in Version 2.0: Can take full advantage of all available memory; more case-specific messages in the status bar after imperfect termination; bundles CycleView.

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  28. Mega Paint

    A simple, fully TI-BASIC art program made on a whim over the course of a week or so!

    For TI-84+ calculators. Compatibility with TI-83 untested.
    Made ON a TI-84+ calculator!

    Features:
    - Full screen canvas.
    - 3 save slots.
    - Line tool, among many others.

    I wanted to make art. So I made an art program.
    Check out the demo picture made entirely in Mega Paint!
    Compatible with any TI-84+ .8xi file.

    In case of bugs, questions, or pent up angers and frustrations, PM me @ memetete. ;)

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  29. Lego Mindstorms EV3 - Racing Game + Setup

    You can make a setup using te touch sensor and the color sensor. You need to connect a steering wheel to a red and yellow part and make them rotate with the steering wheel (I would recommend using a gearbox). You can also make a gas pedal using a spring and the touch sensor. You can also make a joystick from the EV3 IDEA BOOK.

    You can steer using the left and right keys.
    To gas use the touch sensor.
    To brake press middle button to switch touch sensor mode to brake and use touch sensor.

    You are '^' (player)
    Enemies are '#' (other cars, 4 total)
    Do not touch '|' (edge of the road)

    Everytime the cars reach the bottom edge of the screen te game speeds up.

    Please report any bugs.

    Update:
    -Added difficulties and fixed some bugs.

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  30. Clicker 3.2

    Clicker is a BASIC program that enables you to perform repetitive calculations on your TI-89 Titanium much quicker than you can on the Home Screen. You can even store and later access intermediate calculation results just as you'd be able to do on the real Home Screen. It only has one assembly subprogram dependency.

    It works on the basis of performing _iterations_: a user-defined operation works on a user-defined starting value. Then, the output of the operation is used as input for the next iteration.

    The program works flawlessly on negative and complex numbers. It can operate on entire lists or matrices. It can also be automated, running many iterations internally. It has been tested on many hundreds of inputs, and produces expected results every single time.

    In summary, this program is one of the only and best dedicated recursive function executors for the TI-89 Titanium. It is a stair step towards putting your TI-89 Titanium right up there with Mathematica and MATLAB. As always, it's up to you to harness its full potential.

    New in version 3.2: Removes input validation, removes false showings of the "PAUSE" indicator in the status bar, clarify which mode the program is in at launch, replace separate triple dots with one logical triple-dot character, increase performance, decrease memory consumption, map [HOME] to [CLEAR], fix list-compatibility checking bug.

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  31. CALENDAR

    Dispõe na tela o calendário dos meses de qualquer ano a partir de 1601.
    =======================================================================
    Displays the calendar of the months of any year from 1601 onwards.

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  32. Graph3CE v2.0 Beta 3

    Graph3CE is a powerful 3D graphing application for the TI-84 Plus CE family. Enter one to six 3D equations, and rotate and zoom the resulting graph. You can adjust the window and trace over the mesh to examine X, Y, and Z value. This beta release is a port of the Casio Prizm version of this program, utilizing AHelper's gCAS2 engine. Graph3CE understands thirteen built-in math functions, from sin() to atan() to sqrt() to ln(), plus addition, subtract, multiplication, division, grouping, and exponentiation. Give it a try, and please add your feedback in the Graph3CE forum thread linked on the page.

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  33. 2 Kilobyte Tetris clone

    A tetris clone in plain BASIC with five "levels", 2-way rotation and soft/hard drop that fits in less than 2048 bytes.

    Runs at around 2 frames per second on TI84+ CE/TI83 Premium CE and 4 to 5 frames per second on TI83 Premium CE Édition Python.

    Tested on 5.6.1, 5.0.1 and 5.3.0, no issues observed.

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  34. Diamond Problem Solver

    A solver for the infamous diamond problems that have plagued many high schools.

    For those who do not know, a diamond problem is a problem where you have to find a set of numbers that multiply and add to the specified inputs.

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  35. TI-84 Plus Teardown Display Background

    This is the background image for a teardown display of the TI-84 Plus. It is intended to be printed at 13x13 inches.

    I've included an SVG version and a PDF version in case the font gets messed up.

    More details in the forum thread!

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  36. eZ80 Studio

    eZ80 Studio is an on-calc eZ80 assembly IDE for the TI-84 Plus CE and TI-83 Premium CE calculators.
    It includes an editor, assembler, and include file support.

    For a more detailed list of all features and instructions, see the README.

    Enjoy version 1.0.0!

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  37. Converty: The Ultimate Unit Converter

    It's finally here, the best and easiest to use unit converter you'll ever find for any TI calculator. You can convert units of length, area, volume, mass, force, temperature, energy, pressure, velocity/speed, time, and memory. There are 69 units in total. Another awesome perk is that it only takes up ~2200 bytes! If you have a TI-84+ CSE/CE, make sure to grab that version instead.

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  38. COLD

    This is COLD, a survival game in progress for the TI-84 Plus CE. Its got two modes, Story and Free play. In story you have to survive 7 days, completing different challenges in order to get rescued by your team. In free play, you just survive as long as you can, which is infinite. You have to collect resources to repair stuff and eat, clear forests, and try not to die of hypothermia.

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  39. midiCE

    This program lets you use your calculator as a USB MIDI keyboard. It features note input (including dedicated keys for drums), pitchbend, octave shift, sustain, mappable MIDI controls, and settings for the channel, root note, and velocity. Note that the program requires your calculator to be plugged into something else to receive the MIDI events as well (such as a computer running a DAW).

    For key layout and instructions, see the README.

    Enjoy version 1.0.0!

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  40. SandboxCE v1.0

    Written in ICE v2.2.1
    Your typical falling sand simulation game. Has 3 materials: Wall, powder and water.
    Have fun!

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  41. Assembly Icon Editor

    Assembly Icon Editor uses Celtic CE to edit pre-existing ASM/C program icons. I've been using it myself (a lot) and haven't experienced any issues with the assembly programs edited.

    Please note that this is an early release, and I plan to (eventually) add more features and further optimize the code.

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  42. Triss CE - Triangle Screensaver for the TI-84+CE

    TRISS is a screen saver for your TI-84+CE utilizing the Celtic CE library.

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  43. The Guide to TI-83+ Silver Edition BASIC Grayscale Version 1.4.2

    Ancient guide from 2004 explaining in poor English how to do barely-flickering 3-level grayscale in hybrid TI-BASIC with the use of Omnicalc version 1.20 or higher. It also works with Doors CS7 at mostly faster speeds, but this guide would need to be updated to higher standards and for DCS7 itself, since DCS7 libraries are fast enough to do 4 or even 5-level grayscale.

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File statistics are updated periodically, so numbers shown in this listing may not agree exactly with those shown on individual files.

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