The TI-84 Plus CSE is largely incompatible with programs designed for the monochrome or CE calculators, but BASIC on the CSE is compatible with the CE so most programs designed for either will work correctly on a CSE and some monochrome BASIC programs will also work correctly. Most assembly programs require Doors CSE 8 to run, as do some BASIC programs.
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In this installment, the cats are attacked my caterites, or cat pirates, and you must shoot them down to destroy them, in increasingly harder difficulties.
See the readme for more information like the storyline and technical stuff.
UPDATE: Removed status bar areas, now requires Doors CSE.
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The Julian Date Converter is a very simple program that will accurately converter between the standard date
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(Month, Day, Year) and the Julian Date. This program will also allow you to convert from the Julian Date to the
standard date. -
This program draws random squares around the graphscreen. To stop program press any key. Requires Doors CSE 8.0 or higher.
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Enter a word, and it can be reflected to you, making it difficult to decode without the calculator. Also available in TI-83, TI-84, and TI-84 Plus Silver Edition
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This requires Doors CSE. Send all of the stuff to your calculator. Run prgmLYRICS and choose your background. All of them are shown in the gif of prgmDEMOS, not included in this download. The included song AppVar is called SEEYOUAG. If you want to make your own songs, please read the readme or contact me so I know what songs to add to an update. You can PM me, email me at gavinvogt7@gmail.com, write a review, or respond at http://www.cemetech.net/forum/viewtopic.php?t=11698&highlight=. Thanks, and enjoy!
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I made this little program for the Christmas season. It does something special, though, so be sure to check it out! Read the included readme for further information/instructions.
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This classic arcade game is now on color calculators! Use the white paddle at the
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bottom of the screen to bounce the ball off of the colored bricks. Breaking these
bricks scores you points - see how high you can get! If you beat your high score,
then it will be saved on the high score counter. Written in only BASIC, this game
still runs quite smoothly and quickly. There are two programs included: one for
faster calculators, and one for slower calculators. -
The game is rather simple: press the number key (1-6) that corresponds with the tile that's colored differently than the rest. You have ~10 seconds to select; if your timer goes below 0 or you select the wrong tile, your lives will go down by one. Don't let them reach 0 or you'll die!
This is a beta. The next version will fix a few bugs (namely the text being messed up on the first level and an oversight that causes the game not to delete your score after you 'die') and perhaps add three more tiles so you can use the full keypad (1-9).
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Pick 5 is a game where the player randomly chooses five numbers. Requires Doors CSE 8.0 or higher.
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A simple flashlight program. Requires Doors CSE 8.0 or higher.
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A very simple yet useful program that just has you enter in an equation (in terms of Y=) and then
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the X value of the tangent line. From there, the program will calculate the equation of the
tangent line for that equation and at the entered X value. This program will also store both equations
into the Y1 and Y2 variables of the calculator. -
This program takes input from the variable Ans to change the foreground and background colors of text on the homescreen.
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Engine Todo List is a Todo List program that keeps you engaged and productive by offering points (called Sparks) for each task you complete. Spend these points at the Motor Shop to customize your cursor and unlock minigames! Engine is fully compatible between the CSE and monochrome TI-83+ series.
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An interpreter for a custom turtle graphics programming language. See readme for details. Requires DCS8.
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This is a program that will just draw completely random line on your screen. Read the included readme for further information.
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This is a game I made that can teach you to quickly convert between binary and decimal numbers. Read the readme for more info. Version 1.2
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A very simple program that can invert colors on the screen, make it look old, fill the screen with a specific color and animate drawing commands. I hope someone will find a use for it! :)
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Note: PLEASE MAKE SURE that you download ALL OF THE LISTS into your calculator in addition to the main program.
MULTREG is a program for all of your multiple linear regression needs!
It includes a User Guide, a walkthrough of each function (titled "Wait, What?"), a coefficient matrix/SSE/multiple correlation coefficient calculator, a hypothesis test for specific coefficients, a prediction interval for Y, and a hypothesis test regarding reduced models.This is the first program that I've uploaded on Cemetech, and I've done my best to make it as comprehensive as possible, so any and all feedback is welcome! :)
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I made this analog clock a few years ago. It's all right but it has its quirks; feel free to fix them. It also doesn't require DoorsCS or any other libraries. Enjoy!
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Ore Clicker is a game where you click to get ores/smelt ores into metal/sell metal for money. Buy stuff with your money to increase your efficiency. Maybe prestige/travel along the way? Written entirely in TI-Basic, guaranteed to work on the TI-84+CSE, probably works on the TI-84+CE as well. Does not require DoorsCSE.
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Attention all Swifties. It's time to put down your iPhones and pick up your calculators (don't worry, nobody is looking) because it's time to relive the amazing legend of Taylor Swift. Now you, too, can feel like Taylor Swift while mashing random buttons so legions of fans can hoard around you while you play through 10 whole songs that all sound the same (silent in this case)! And to top it off, you'll experience it all in mind-blowing 16-color graphics! But that's not all: if you manage to get 24 stars or more on all 10 songs, you'll unlock a special Easter Egg that you'll cherish for minutes to come! Then if you score some Adderall, you can enjoy it for even more minutes to come. (Disclaimer for Swifties: since no sound is actually played you'll have to keep your AirPods plugged in while playing the only playlist that matters.) (Disclaimer for nerds: This program is written entirely in pure TI-BASIC so no libraries are necessary.)
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GraphAs is a tool designed to allow users to graph more functions at once than the TI-84 normally allows. Choose a graphing mode and watch it graph. More info in the README
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This program was made for CC18
This is a 84+CSE Hybrid basic program that functions like your average memory game. Move the cursor around using the arrow keys, and select a card with [2nd] or [Enter]. The goal is to clear the entire screen by selecting matching pairs of snowflakes. Enjoy!
Update: Fixed game so you can no longer click on the invisible blue cards (what cards turn into after you match them)
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Using a TI-84 Plus C Silver Edition, control any TI-83/84 series calculator through the I/O port. This is a good prank, and good for troubleshooting broken calculators.
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Random black dot drawing sceen saver. can quit and save pic w/ clear
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The classic game of Othello/Reversi, in less than a kilobyte! ENTER/2ND to place a disk, and CLEAR to quit. Compatible with monochrome and color calculators.
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Includes Verizon, At&t, and T-Mobile logos for use as graph backgrounds!
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Needs Doors CSE to work. Now has a good timer icon. Basic timer counting up by seconds. I have added pausing, and hopefully I will make one more update to display something different while the timer is paused. I changed the color around my name to yellow because it looks better, and the green changes to red to notify the user when the timer is paused. You will see in the second screenshot (or whichever one has the yellow and red with pausing and stuff).
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This is a much faster version of Tuppers Formula being plotted on TI-84 CSE. It runs in under 6 minutes.
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This program, written entirely in BASIC, has a functional timer and a stopwatch accurate
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up to 1/100 of a second! (Depending on the calculator, of course.) It uses a calibration
technique that makes the stopwatch accurate for whatever calculator you use it on. -
This extremely useful program converts programs into appvars (can be used to hide them - they can be run from the menu or an insert string) and vice versa. It also allows users to convert programs and appvars to strings (very useful for debugging) and rename appvars. Please read the readme.txt for important notice.
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Answer trivia questions and make your way through to complete the game! Or make your own question packs and challenge your friends!
WARNING: There is currently a bug which I cannot avoid where the level editor will sometimes crash. This is a problem with Celtic and I hope it doesn't happen to anybody.
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Strax, everyone's favorite Sontaran Soldier, is now portable and able to offer sound advice to you when dealing with the enemies of the Sontaran Empire! He offers up random strategies to help you potentially make it through your day.
(This program is strictly for amusement and should not be taken seriously)
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Harry Potter Currency Converter.
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This is a simplistic maze generator for the CSE and CE. The code is old, but still plenty of fun to mess about with. Each maze will fill the screen, provide only one path to the exit, and only take a single-digit number of minutes to generate (maybe). A minigame to solve the maze is also bundled in.
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Lists is a simple basic program that uses the calculator's pictures to store text
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that the program has you enter. You can have up to five lists stored at one time
and each list has a title and can have up to 12 items entered into it. When creating a list the program will ask you enter a title and at least one item. Items can be added and removed from any list you create and you can delete a list just by hitting DEL. A pretty neat and easy to use program to try out. -
The RPG is a game where you can fight enemies, gain stats, explore caves, fight bosses and become the most powerful person there ever was. REQUIRES DOORS CSE 8.1 OR HIGHER!!
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ZMath is a collection of the first few (mainly) math programs I ever made on the TI-84 Plus C Silver Edition. It includes the following calculations:
-nth term of Arithmetic Sequence
-Arithmetic Series
-Distance Formula
-Area of Equilateral Triangle
-Binomial Expansion
-Basic PONG
-Area of Regular Polygon
-Area of Regular Triangle (Heron's Formula)As always, any and all feedback is appreciated! :)
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This is a simulated temperature checker, just for fun. Detailed description and instructions in the readme. This is like the one I made for the TI-84 Plus CE, but it is ported to the TI-84 Plus C Silver Edition. This does have a DoorsCSE icon, but DoorsCSE IS NOT REQUIRED to be able to run this program.
Added Screenshots.Upgraded loading bars and updated subprograms so they don't graph functions in the middle of the program.
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Removed Old screenshots. -
How does it work, you say? Well, if you ever were playing a game using xLIBC and thought "Man, I wish I knew the value of that color! It's too hard for me to search for its exact value in IntCPick!", this is the thing for you!
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Welcome to Reaction Time! This is a simple game that helps you test your reaction skills and as well as have fun! Rack up that high score and challenge your friends!
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For those of you who code on your calculator directly, this is an integer color mixer for the TI-84 Plus CSE. (Mainly used for reals.) Simply move the cursor around and select the color you want. When you press 2ND or Enter, it will display the value and save the value to V.
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This version of Battleship is the standard 2-player turn-based game. You can place your own ships, or generate them randomly. This game DOES NOT use pictures, but it does use matrices [A] and [B].
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This was originally going to be an "improved homescreen" I was making but scrapped the idea and I thought I'd upload it to show how amazing it is to demonstrate how month and time detection can be great for programs. Depending on the season, the ground color will change. Depending on the time, the sky will change.
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SKEWKURT is a program for calculating univariate sample skewness and kurtosis!
Note: All formulae are derived from the Statistical Package for the Social Sciences (SPSS).
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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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This is an Arithmetic Sequence Calculator for the TI-84 Plus CE written in TI-BASIC.
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It is compatible with all the TI-Calculators that can run TI-BASIC Programs.
It displays the equation "a=d(n-1)+b", where:
________B is the first number of the Sequence
________D is the distance between each number in the sequence
________N is how far the number you want in the sequence is (the Nth term)
For any help on Installation, check the ReadMe. -
If you have ever missed the backspace key on a TI-83/84/+/SE then you will be glad to hear that it has finally been made available.
I discovered the undocumented backspace key a while ago when I was testing a USB keyboard entry method on the TI 83/84 etc. Today I discovered keyhooks and mixed the both together.
Here it is, source code too. Remember to disable Mathprint. Enjoy.
P.S. I'm experimenting with this on TI84+CSE, but not there yet.
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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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COWSAY BASIC v1.0
Merthsoft Creations, January 2025About:
COWSAY is a very simple implementation of the famous cowsay program.Usage:
Takes string input in ANS, and displays a cow saying the message.
If the message is longer than 24 characters, it will be truncated.Example:
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"Cows are cool":prgmCOWSAY
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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