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 TI84 Plus CE Programs
 TI84 Plus CE Assembly Programs
 TI84 Plus CE Assembly Math Programs
These files are for the TI84 Plus CE, 83 Premium CE, and other "CE" calculators with color screens. BASIC programs are compatible with the TI84 Plus CSE and some BASIC programs written for monochrome 83+/84+ calculators will also work correctly. Assembly and C programs must be written for the CE calculators specifically; running them on calculators with an OS newer than 5.5 requires jailbreaking the calculator.
Many assembly programs for the CE calculators are written in C, and will require a copy of the C libraries on the calculator in order to run.
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This neat little program makes your calculator automatically display fractions on the home screen! See the readme for more.
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Enter the number of vertices and their X and Y coordinates, and this calculates its perimeter.
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Test numbers to see if they are a Prime number. If the number has factors (not a prime number), you can view them. Enjoy!
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PineappleCAS is a computer algebra system for the TI84 Plus CE calculators. It can simplify algebra and identities, evaluate arbitrary precision integer arithmetic, take derivatives, manipulate complex numbers, expand multiplication, substitute expressions, and more. It features a nice GUI and a TIBASIC interface so that you can use PineappleCAS from within a basic program.
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Whether you are a beginner or a master mental calculator, Mental Math is a great program for learning how to compute problems in your head much faster than doing them on paper. Have fun! Version 2.0.1 CE
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A realtime converter that lets you enter any of base 10, 16, and 2, and converts it as you type to the other two bases.
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A CE C toolchain library  for use with LIBLOAD.
An implementation of industrystandard cryptography for the TI84+ CE graphing calculator. Contains a secure RNG, Advanced Encryption Standard and RSA encryption algorithms, SSL signature verification, and more. See the enclosed documentation for details.modular exponentiation routine by jacobly
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sha256_transform by beck
some code sourced from public domain repo
wrappers, documentation, and some implementation by ACagliano 
A simple programmer's calculator, with support for basic arithmetic and bitwise operations in hexadecimal, decimal, octal, and binary. Uses an RPN input system.
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A simple 2D CAD for the TI84 Plus CE
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Adds commas (or spaces) to real numbers displayed on the homescreen in TIOS.
It can also change what character is used as a decimal point.
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Calculate Pi, using random integers and a gcd function, written in c, with help from MateoConLechuga and jacobly
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v1.3 : Initial Release
v1.5 : add keyboard interupt with any key 
Calculate prime numbers, quickly! Made with the help of MateoConLechuga
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A suite of dynamic libraries for the TI84+ CE designed to integrate with the C/ez80 toolchain. There are three libraries in the library group that can be installed: HASHLIB, ENCRYPT, ENCODEXand a singular group file to install them all (CryptX). HASHLIB provides: (1) cryptographic hashing, (2) HMAC, (3) hashbased mask generation, (4) key derivation. ENCRYPT provides: (1) A secure pseudorandom number generator, (2) AES128, AES192, AES256 in CBC and CTR modes, (3) RSA for key lengths from 1024 to 2048 bits, (4) Elliptic Curve DiffieHellman using the SECT233k1 NISTdefined curve. ENCODEX provides: (1) ASN.1 decoding, (2) Base64 encoding/decoding, (3) Bit packing encoding/decoding.
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Documentation:
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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