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  1. PrizmWordle

    An open source port of the popular game Wordle to the CASIO fx-CG50. Compatibility with the fx-CG10/20 is not assured.

    Play a new random word every time, from the official Wordle word list, and record your stats and guess distribution in storage.
    Rev. 1 - Now with tile animations!
    Rev. 2 - A confirmation screen on resetting was added as a quality of life improvement.

    Enjoy!

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  2. Pong Original

    This is the original version of pong. It is very very simple, yet very very fun. If you like games, then you won't regret downloading this. Try out the new Acceleration Mode!

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  3. MOVE3

    A platformer, made as a sort of introductory project for myself. More info here: http://www.cemetech.net/forum/viewtopic.php?t=11285

    Level 4 is in progress, as you can see from the fourth screenshot below.

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  4. Polynomial Expander

    This small and nifty math program takes two polynomials of any size in the form (A*X^B*Y^C...)(A*X^B*Y^C...). It then expands these two polynomials and combines like terms. Save time, reduce error. Note: This program requires the newest version of the TI-84 Plus CE OS, because of the toString command used in displaying results.

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  5. Space Invaders v2.0

    This cool graphical Space Invaders game lets you shoot the UFOs, which come ever closer to destroying you. Get their shields down to 0% before they get you! Now with calculator file.

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  6. Bejeweled

    The classic gem-matching game, Bejeweled! Match groups of 3 or more gems to earn points. Match multiple groups of gems for big score multipliers! Multiple background pictures included.

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  7. Base Converter

    This base converter is very simple to use. Converts bases from 2-32 and works very well! If you get errors, try deleting all variables and strings and try again. Message me if you have any problems.

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  8. RPG Game

    I present to you RPG Game, a simple RPG about fighting enemies. There are a total of 6 bosses, each giving a special upgrade once defeated. Can you fight your way through waves of enemies and tough bosses? While it is simplistic, I hope you enjoy it!

    Update: The game should ACTUALLY work now. Sorry it's been so long!

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  9. The 1337 Guide to TI-BASIC

    This is an informative, lengthy manual describing little-known tips, tricks, and hacks for TI-BASIC that are sure to turn you into a '1337' programmer.

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  10. Compound interest program

    A simple program to calculate interval and continuous compound interest.

    Some tweaking allows this to work with other calculators with TI-BASIC support.

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  11. Discriminant

    Updated file of discriminant

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  12. Avoid!

    A (currently) simple avoidance game. Really fun, and can get challenging at times!

    See the README for details!
    (Screenshots coming soon)

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  13. Distributions 25+ 7400GII

    Distributions calculation for Graph 25+Pro and FX-7400GII:

    These are programs to calculate probability, cumulative probability, inverse cumulative probability of:

    - Binomial distribution
    - Geometric distribution
    - Hypergeometric distribution
    - Normal distribution
    - Poisson distribution

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  14. PC File to 8xv appVariable Converter

    Converts any file to an application variable. Max file size 64k

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  15. CC20 Air/ Space: JPL v.3.1

    This game is designed to work across ALL TI-83/84 calculators. Yes, finally a program that works with both monochrome and color calculators! In this game YOU make your own craft to fly through checkpoints! Using intuitive controls, you can create amazing crafts! This new version includes a revamped save and load system which allows you to save 30 custom-named ships! Save files are also compatible across all calculators. It also includes optimizations to the build system which makes it 3 times faster than what the screenshots show. This program won the 2017 December Project of the Month!

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  16. Grayscale Minesweeper 1

    Grayscale Minesweeper 1 is a clone of the original minesweeper on the computer. It has almost flawless grayscale, a digital timer, a record keeper, and a cursor. It even has the smily face from the original! It can be run nostub or from an ion compatible shell, such as MirageOS or DoorsCS.

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  17. Double Dragon

    Double Dragon is a side scrolling arcade classic, now for your ti83+/84+. Winner of the TI Freakware Programming Contest, it features ten levels, varying enemies, greyscale graphics, eight directional movement, and speedy game play. The TI Mafia has your girlfriend, and you're left passed out on the street. You have nothing to lose. The cards are on the table, it's up to you to save the day.

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  18. Matrix 25+ 7400GII

    Complete matrix calculation for Graph 25+Pro and FX-7400GII:

    Invert (INVERSE)
    Raise to higher power (M HOCH X)
    Multiplication with scalar (M MAL X)
    Multiplication with matrix (M MAL M)
    Determinant (REFDET)
    Gaussian elimination (REFDET)
    Gauss–Jordan elimination (RREF)

    Editing
    Copy matrix to other lists (KOPIEREN)
    Generate a random matrix (M ERZEUG)

    Input of matrices in then lists of the STAT-application, calculation in PRGM-application, result again in STAT-application.

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  19. Equation Library

    The program eqnlib offers 47 equations for HP Prime’s Solver App. Just run the eqlib program, select the category that you are interested in, and select the equation within that category and you are off and running!

    The equation selected will be loaded into the system variable E1. The program will show you what each variable represents in the solver. Keep this screen up as long as you like. When done, press [Enter], and you will be taken to the Numeric View of the Solve App. To see the equation, press the soft (Defn) key.

    Categories include:
    * Geometry (areas, volumes, surface areas)
    * Finance (monthly loans, sales tax, break-even)
    * Temperature Conversion (Fahrenheit to and from Celsius)
    * Physics: Problems of Motion (linear distance, circular motion, pendulums, terminal & escape velocity)
    * Sound (speed of sound, Doppler effect, loudness)
    * Optics (Lens and Snell equations, spherical refraction)
    * Electronics (2 resistors series and parallel, thermal noise, Ohm's Law)
    * Astronomy (parallax, luminosity, Kepler's 3rd Law, time dilation)
    * Great Circle Calculations
    * Angle of Incidence Calculations
    * Gases (Ideal and Boyle's Gas Laws, heat capacity, air density, isothermal expansion)
    * Fluids (depth pressure, fluid flow, Bernoulli's Equation)

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  20. Escape The Buoy! (CC20)

    In this game, you have to escape a buoy with the resources at your disposal. Although it is somewhat short, it does test your critical thinking skills in a precarious situation. This is my first ever "escape game", so the code I came up with is what I thought would work best (Don't Judge :P). There probably is a better way of doing it, but you gotta learn, right? This project was made for Cemetech Contest 20: Transit Time in the water category.

    Escape, and Enjoy!

    -OldNewTimer

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  21. Distance Formula

    This program finds the distance between two points

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  22. CC18 Snow

    You are a very lazy person. It is snowing outside. Since you don't want to shovel, you are trying to catch every snowflake in a garbage can. Made for Cemetech Contest 18, keyword "snow".

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  23. BOSshell v4.11.1 release 4 patch 1

    BOSshell, coming to a CE near you!
    This program aims to provide a simple GUI and system for interfacing with files and file viewers/editors. It works with the standard Asm header, as well as its own filetyping system.
    Now with better UI, programs in the file system, improved stability, type/icon/description display for Asm programs, and file detection on first start!
    New: Add safer archive routine, fix some file names not displaying, fix [del] key not deleting files, update file info GUI, remove redundant and unused code.

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  24. RPN83P: RPN calculator for TI-83+ TI-84+ inspired by HP-42S

    RPN83P is an RPN calculator app for the TI-83 Plus and the TI-84 Plus. The app is inspired mostly by the HP-42S calculator, with significant features from the HP-12C and the HP-16C. RPN83P is a flash application that consumes 3 pages (48 kiB) of flash memory.

    Features:

    * traditional RPN stack (X, Y, Z, T) with LastX register (resizable, 4 to 8 levels)
    * scrollable input cursor
    * 8-line display showing 4 stack registers
    * storage registers (resizable, 25 to 100 registers)
    * storage variables (27, A to Z, and Theta)
    * hierarchical menu system
    * support for all dedicated math buttons on the TI-83 Plus and TI-84 Plus
    * additional advanced math menu functions (MATH)
    * arithmetic functions, prime factorization (NUM)
    * angle conversions (CONV)
    * hyperbolic functions (HYP)
    * probability functions (PROB)
    * unit conversions (UNIT)
    * base conversions and bitwise operations (BASE)
    * 1 or 2 variable statistics (STAT)
    * curve fitting, linear, logarithmic, exponential, power (CFIT)
    * time value of money (TVM)
    * complex numbers (CPLX)
    * date, time, datetime, timezone, and real-time clock (DATE)
    * various display modes (FIX, SCI, ENG)

    Installation:

    * Install the rpn83p.8xk flash app file.

    Starting:

    * Press APPS.
    * Scroll down to the RPN83P entry.
    * Press ENTER.

    Exiting:

    * Quit app: 2ND QUIT
    * Turn off device: 2ND OFF

    Version: 1.0.0 (2024-07-19)

    Major Changes from 0.12.0:

    * graduate from Beta to v1.0
    * increase accuracy of TVM when I%YR is very close to 0%
    * improve speed of Prime Factor function PRIM by 2.4X
    * add additional UNIT conversions
    * CLEAR erases only to end of line if cursor is inside the input line

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  25. Cubic Formula

    A simple program to calculate the roots of a cubic equation.

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  26. Monkey Adventure

    You are a monkey that has to try and collect bananas without being captures by the hunters.

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  27. Triangle Solver

    This program will solve for the missing angles/sides of any triangle!
    It will also solve for the area and perimeter, and then draw a picture of the triangle.
    Features two color themes!

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  28. Equation Solver

    This is a TI-Basic program that when you type in the variables for certain math equations, it gives you the answer to the math problem. It includes several Algebra Equations including slope, Pythagorean Theorem, distance, midpoint, and quadratic. It also includes geometry equations too.
    Edit: I added more options to the quadratic. Conversion planned. You can also find the nth number of the Fibonacci sequence. I hope you enjoy...

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  29. Plinko for your 83+/84+CSE

    It's Plinko, what more do you need to know? Now With Color!

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  30. AntiDerivative v1.0

    Do you take Calculus? Have you ever wanted to perform a quick antiderivation? Now you can! simply plug in the antiderivative of cx^n dx, and this nifty program will find the original equation in the form zx^p+C. Excellent graphics and interface; Doors CS v4.0 optimized.

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  31. Algebra 1 Helper 2.0

    Well, here is a nice little math program for your TI-83+/84+ that will handle much of the math needed. It should be sufficent for the first semester of Algebra 1.

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  32. Temperature Converter

    Will convert between Celsius, Fahrenheit, and Kelvin.

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  33. Boxman

    In this game you use the two left and right arrow keys to move the green box. Try to navigate all the way to the top without getting squashed. NOTES: You can only move up one block at a time. The higher you are the more points you get. This game is also on scratch.mit.edu! http://scratch.mit.edu/projects/24729815/

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  34. Adaptive Parkour

    In Adaptive Parkour you must adapt your character to beat each challenge! Each level is designed with a new character design in mind. You may customize run speed, jump height, and player size. Each level is possible, and your progress saves! No need for a "README", because all the information you'll need to play is in game! Though, just incase you can't follow simple directions the calculator gives you, you'll need the clibs to play this game (https://tiny.cc/clibs)

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  35. MCAT

    MCAT, a formula used in
    chemistry to find the amount of heat gained or lost in a reaction. This program currently supports finding q, m, and C. Future versions will support Delta T.

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  36. Oriam Levelpack: Deeper You Go

    This is a Level pack for MateoConLechuga's Oriam and was made using his Oriam level editor. This is my first time so it may not be much but keep an eye out
    for DeeperYouGo2! Read the readme for more info about the game.
    Oriam.

    (I am in no way taking credit for Oriam or the Oriam level editor. this is just a level pack)

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  37. Picture/Text/Video Viewer

    Convert Files with the desktop application, and then move them to the calculator. You can us it to view text aswell as Images on your calculator. There are also a couple of different compression options, to archieve a compromise between picture quality and size.

    NEW: Video support. Just add the mp4 like an image.
    about 6min of mp4_med video fit on the calc.

    Changes:
    -fixed video encoder

    For further instructions, read the supplied README.

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  38. CALCnet 2.2 Whitepaper

    This technical report details the CALCnet 2.2 networking protocol for graphing calculators. It begins with an overview of the motivations and inspirations for CALCnet, then reviews the existing alternatives for two-calculator linking, namely the TI-OS, BELL by Tim "Timendus" Franssen, and TachyonLink by Michael Vincent, and n-calc linking, namely CLAP by Mr. Franssen. It goes on to introduce the electrical systems in the calculator for linking, then proceeds to an in-depth section explaining the bit-level, byte-level, and frame-level protocols for one-to-one and broadcast frames. Although the average CALCnet 2.2 user or even programmer does not need to know any of that, it might help in case a coder wants to write CALCnet 2.2 drivers for another platform (Arduino? libticables?). Next is the meat of the manual for end programmers, how to send and receive data via CALCnet 2.2. I include a full experimental results and benchmarking section, detailing the maximum speeds of CALCnet, the overhead incurred by the protocol, effects of frame size on burst throughput, an effectiveness of collision detection and delivery guarantees. It concludes with information on logos and branding, a survey of possible future work, and a summary of CALCnet2.2's strengths and features.

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  39. [MAP] BL-Atlantis

    This fully developed map contains two levels of building: on the surface of the water, and in underwater colonies. Explore the submarine lava rivers as you create your builds, and ponder the flashes of lightning, rumbling thunder, and ominous clouds above the surface of the water. Just be sure to bring a raincoat so you don't get soaked by the rain.

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  40. PrizmProject

    This program sets up an empty prizm project for you, creating all the files needed by pcgsdk and Visual Studio 2010.

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  41. Mastermind

    Mastermind for the TI-84 Plus C Silver Edition. Try to solve the four color sequence in the least amount of moves, using deduction through clues provided per round. Single and two player mode. Requires Doors CSE 8.0 or higher, from http://dcs.cemetech.net.

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  42. SuperMarmWorld

    This is the files for WORLD 1, WORLD 2 and WORLD 3 of Super Marm World

    Here are the planned worlds to be released:
    •Wooden Plateau
    •Wet Shores
    •Wispy Clouds
    •Frozen Tundra (or The Land of Snow Return 9_9 )
    •Green Land
    •Lava Lakes

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  43. Molar Mass Calculator 3.0

    This programs calculates mass in grams of atomic structures.

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  44. Memory CE

    This is a classic memory made using PT_’s awesome ICE programming language.
    2 versions of the program are included. They are identical except for the sprites that are included within the program. One has the default sprite pack and the other has sprites that are the github identicons of various cemetech members (see https://github.com/blog/1586-identicons)
    Use the arrow keys to move the cursor around and use either [2nd] or [enter] to select a card and flip it over. Next, you can either press [2nd] or [enter] on the same card to deselect it, or move the cursor to another card and select that as well. Selecting 2 matching cards erases them from the board, and erasing all the pairs means that you win! Pressing [clear] at any time quits the game.

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  45. TI2048

    TI2048 is a clone of the mobile game 2048 for TI-84+CE

    Make 2048 by sliding and combining tiles

    Game board is saved when you exit and is restored when you return

    the game will run slow, as it is written in BASIC

    CONTROLS:
    arrow keys: slide tiles
    f1(y=): reset board
    enter: advance a turn
    0: exit game

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  46. Rocket Cat

    Rocket Cat is a game where you need to try to fly your cat to the moon.
    You start off with $0 and a basic rocket, fuel pack, and cat.
    By flying through space, you can gain more money to try and upgrade your rocket, fuel, and cat.
    Rockets make you go faster, and fuel packs make you fly farther. Cat skins make you look awesome.
    Blue items are selected, and green items are purchased. To purchase/select an item, just use the
    arrow keys to move over it, and press enter to bring up the selection screen, and press enter again.

    Credits:
    KermM for the calc sprite used in one of the cats
    aeTIos for game idea

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  47. Magic Eight Ball

    === Want an answer to your question? Eight Ball is here to help! ===

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  48. Doors CS 7 SDK

    Doors CS 7.2 is the ultimate shell for TI-83+/SE and TI-84+/SE graphing calculators. This SDK will help you design BASIC and ASM programs for use under Doors CS. Besides an exhaustive, 124-page summary of all the features and routines that Doors CS 7 offers to BASIC and ASM programmers, this SDK contains a full toolchain to compile and build z80 ASM source code into .8xp files, all the necessary tools and include files, and additional programs to simplify writing headers for BASIC programs. If you are interested in developing for Doors CS or even learning about what it offers to programmers, this SDK is a must-have.

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  49. Floaty Cloud

    Floaty Cloud is a Flappy Bird spin-off for the TI-84 Plus CE. It was programmed for CC20 by dankcalculatorbro and requires c libraries.

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  50. Realistic Flight Simulator

    While the Realistic Flight Simulator may not be very realistic, and doesn't even qualify as a flight simulator, it's still lots of fun!
    Avoid the vicious flappy birds and beware the clouds that block your vision!

    Controls
    Move: Arrows/Numpad
    Shoot: Enter

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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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