| __Name__ | __Size__ | __Date__ | __Rating__ | __Description__ |

| **(Parent Dir)** | *folder* | | **Up to TI-83/84 Plus BASIC Math Programs** |

| **4dummies.zip** | 1k | 12-02-16 | | **Programming for Dummies** This is a simple little program I made to write other programs. This is similar to my other great program, Your Form, but about a tenth of the size. To see how to operate this exciting program, check out the read me! |

| **abplusexpressionssolver.zip** | 126k | 05-12-21 | | **AB Plus Expressions Solver** This program solves expressions of the form AB+ for the AB Plus variation, a variation used in Academic Games Equations. Read the readme for more information and if you already play Equations, then enjoy! |

| **airplane.zip** | 1k | 05-09-13 | | **Airplane Calculations** You input your speed, bearing, wind speed and bearing, and the distance to your destination. It tells you your landspeed, magnetic heading, wind corrected heading, and time to destination. Very useful program, took me a little while to write. |

| **angleclock.zip** | 1k | 01-12-16 | | **angleclock** This program allows you to find the angle the hands of a clock are forming at a specific time. Read the readme! |

| **api.zip** | 1k | 05-03-07 | | **The first 1376 digits of pi v.1.0.1376** This program displays the first 1376 digits of pi on 6 screens. I don't know if it is 100% accurate - I typed all of them in by hand. |

| **aquad.zip** | 1k | 10-04-01 | | **AQUAD** This is an updated version of AQUAD. |

| **argnote.zip** | 1k | 06-04-12 | | **Argument Notation Validator (v. 2.0)** This program is designed to validate argument notation. I updated it to work with the rules of logic, so it is a much bigger file than before. This program is designed to validate argument notation. I have not worked out all the bugs yet, so please let me know if there is a problem. Also, you can freely distribute this program, but must make note that I created it. If you downloaded the previous version, you MUST download this one. The other version is now obsolete. |

| **aseconds.zip** | 1k | 01-12-16 | | **Year to seconds and more** This program allows you to enter two years (e.g 1987 e.g. 2001) and it will tell you how many days, hours, minutes, and seconds there is between those years. Also it tells what school a person with that birthday should be in (if its "school age".) |

| **asolve.8xp.zip** | 1k | 10-05-20 | | **A+ Solver Version 1** Guarunteed and tested to get an A+. A+ Solver solves various areas and volumes. It was writte by hand on a TI-83+. |

| **banzhafpowerindex.zip** | 1k | 20-03-16 | | **Banzhaf Power Index** This program computes the Banzhaf Power Index for voting coalitions by using generating functions. The user enters in the number of votes required to pass a resolution and the voting body as a list. The program does the rest. Please read documentation for more info. Enjoy! |

| **besselfunctions.zip** | 7k | 16-06-27 | | **Bessel Functions** This file contains 18 programs dealing with Jn and Yn functions. Please read documentation. Encourage that you only upload to calculator what you need. Programs will either compute a specific value or plot the curve from 0 to 10. Enjoy! |

| **bigoh.zip** | 1k | 04-01-28 | | **Big-Oh Tester** This program allows you to easily test if a function is Big-Oh of another function, but changing the constant. |

| **binex.zip** | 1k | 05-05-26 | | **Binex v1.2** An updated version of the Binex program I submitted earlier. |

| **bitwise.zip** | 1k | 04-09-16 | | **Bitwise Logic** Bitwise and/or/xor functions. 83 compatible. Read documentation for more information. |

| **bolt_circle.zip** | 1k | 03-03-10 | | **Bolt Circle** Calculate a bolt hole circle quickly, displays all results of a hole pattern on your screen.A great program for machinist. |

| **bsamosteller.zip** | 1k | 12-03-09 | | **BSA Mosteller** This program uses the Mosteller formula (metric only) to compute the boday surface area. Great for an example of using radicals. Enjoy! |

| **calcdcs83p.zip** | 1k | 03-04-15 | | **Calculator v1.0 For Doors CS** This program lets you do math calculations without leaving Doors CS. Simply run the program, enter the problem, and press [ENTER]. You can continue doing math until you enter 99.999 to quit back to Doors CS. And of course, optimized for Doors CS v4.0 with an icon. |

| **calcmode.zip** | 1k | 02-05-28 | | **calculator for mirage** Now you can do mathmatic equations w/o exiting Mirage. Also please look at the "readme" file. |

| **calculmental4.0.zip** | 21k | 10-10-21 | | **Calcul Mental** Here's Calcul Mental 4.0! To train mental math and to be less dependent on the calculator. Several activities are at your disposal! The calculator saves your stats and lets you know where your training! Click on the image quickly! The screen is much slower than the real program. If you get bored watching it, download it and try! |

| **chaos.8xp** | 1k | 02-03-03 | | **Chaos** The Theory of CHAOS in Action! |

| **checksum.zip** | 2k | 04-07-07 | | **Checksum** This program calcs the checksum. If you want to know what it is, click on the red icon and then on "Checksum -=- readme.htm" in the list if included files. |

| **clockview.zip** | 1k | 00-03-15 | | **Clock View** Shows how a real clock would show the time you specify. Also tells the angle difference between the hour and the minute hand. |

| **clokwork.zip** | 1k | 04-09-20 | | **Clockwork 2.0** Helps you figure out the angles of the clock's hands. Caution: it's not idiot proof, so don't try to enter fractions, negatives, and other kinds of numbers or you'll wind up with really interesting results. |

| **cmlprog.zip** | 3k | 08-11-29 | | **CML Program 2** This is a BRUTE FORCE INTEGER SOLVER to solve all kinds of difficult math problems. I created this program because during the CMLs, there was always some problem that I could only solve by making a new program during the test. Well, I finally got tired of having to waste time designing specialized programs, so I made this universal solver instead. Heres an example: What are all the positive integer pairs whose product is three times the sum? Using the program, you would find that (4,12) and (6,6) are the only solutions. This program is perfect for many math competitions and saves you the time and hassle of having to write programs during tests. NOW NEW AND IMPROVED! HALF THE SIZE!!! |

| **cnpar.zip** | 1k | 18-10-02 | | **Crank-Nicolson** This program uses the Crank-Nicolson discretization to solve the standard heat equation. Great for numerical pdes, enjoy! |

| **combinatorics2.zip** | 2k | 15-04-25 | | **Combinatorics 2** This folder contains four files, one on multinomial coefficients, one on Lah numbers, one of the Fibonacci sequence and one on determining whether a number is in the Fibonacci sequence. Enjoy! |

| **complex.zip** | 1k | 14-06-07 | | **NL Complex Numbers** changing (omrekenen) between Cartesian (cart) and Polar coordinate (pool) systems operations (rekenen); addition (optel), subtraction (aftrek), multiplication (vermedig), division (delen) and exponention (macht) |

| **confrac.zip** | 1k | 08-12-19 | | **Continued Fraction Evaluator** Finds the value of a continued fraction of (almost) arbitrary length. |

| **daycalc.zip** | 1k | 03-10-05 | | **Day Calc** Ever wanted to know what day of the week you were born on? Just enter the month, the day, and the year and this amazing new program will tell you. Use it to calculate any day, past, present or future. Enjoy |

| **dayoftheweek.zip** | 1k | 11-12-20 | | **Day of the Week** This program will compute the day of the week a certain date falls on. Just enter in the information. Enjoy! |

| **dayofwk.zip** | 1k | 07-04-26 | | **Day of the Week** This program finds the day of the week. You would be surprised how many people don't know day of birth. Pictures in file. |

| **day.zip** | 1k | 04-03-13 | | **Day of week** This program will tell you the day of the week for any date, in the past present or future |

| **dijkstraalgorithm.zip** | 1k | 20-04-02 | | **Dijkstra Algorithm** This program computes results for Dijkstra's Algorithm. Great for small networks. Just enter in the adjacency matrix for the network and the program does the rest. Enjoy! |

| **dirichlet.zip** | 1k | 09-01-05 | | **Dirichlet Rational Approximations** Quickly and efficiently calculates the best rational approximation to a number (pi, e, etc.) with denominator within a user-defined interval using Dirichlet's Approximation Theorem. |

| **dispsn.zip** | 1k | 01-08-04 | | **DISPSN** With this handy utility, you can simplify those teaseing exponents, scientific notation, fractions, and even real numbers simply by typing them in and hitting enter! Only 195 bytes! |

| **doomsday.zip** | 1k | 06-09-08 | | **Doomsday** This program determines the day of the week for any date in history. The method is derived from one developed by Lewis Carroll. This updated version cleans up the display a little bit. |

| **dosagefile.zip** | 1k | 13-02-18 | | **Dosage** This program uses Young's rule and Clark's rule for computing the equivalent child dose for an adult dosage prescribed. Always consult a doctor before giving medicine to a child. This is a great application in Algebra for rational functions. |

| **ebbinghauslearningmodel.zip** | 1k | 12-07-06 | | **Ebbinghaus Model** This program is a program dealing with the Ebbinghaus Learning Model and is a nice application of exponential functions. Enjoy! |

| **entropy.zip** | 1k | 04-12-01 | | **Entropy of a Set** Given a string of symbols, finds the entropy of the string. Indicates the lowest number of bits per symbol before you start losing information because of too much compression. |

| **eoqbackorder2.zip** | 1k | 13-04-26 | | **EOQ Back Orders 2** This program answers questions dealing with EOQ when not only back-orders are allowed, but when production is NOT instantaneous. Great for operations research students or business students studying inventory models. Enjoy! |

| **eoqshortages.zip** | 1k | 12-04-05 | | **EOQ with Shortages** This program can be used to compute EOQ when shortages are permitted. |

| **eoqtest.zip** | 1k | 13-04-26 | | **EOQTest** This program will test (based on Peterson and Silver's guidelines)whether or not the assumption of constant rate of demand is met. The user inputs the demand per period in a list and the program outputs the variability coefficient and the decision to be made. Great for operations research students or business students studying inventory theory. Enjoy! |

| **errpos.zip** | 1k | 03-11-12 | | **Tipos de Errores** Programa que muestra los tipos de errores y cómo calcularlos. Para la asignatura de Sistemas Electrónicos de Control |

| **exactabc.8xp** | 1k | 02-01-01 | | **Exact Values** This program shows you the exact values of some numbers! |

| **expotest.zip** | 3k | 08-11-26 | | **Exponent Test** This is the exponent test created by Jet Chaw on the calculator! The questions are random and a bit redundant, but this is worth the download nonetheless. Try to get all 60 of the questions right before 4 minutes are up. Although it is unlikely that anyone will ever finish more than 40 and get them all right, try. This has helped me in math more than any other type of test that i have ever taken. Good luck! This newer file has a 83 file, which has no time limit, and an 84 file, which does. Use the one that you can/want. |

| **ezcalc.zip** | 4k | 04-11-04 | | **EZ Calculator 1.0** Have you ever used a old calculator in the 80s which you have to first enter 2 numbers, press enter and insert what you want to do. (Add,Subtract...) This is a simulation of that kind of calc. Actually is is quite useful, if you enter a number and press enter, it gives all values of its sine cosine or tangent (also the inverse) Wish this helps you on a test. |

| **force.8xp** | 1k | 02-03-03 | | **Forces** Calculates Newton Forces at any Angle. |

| **fresolv.zip** | 1k | 03-04-04 | | **Fórmula Resolvente em Português** Fórmula resolvente de equações de segundo grau usado a partir do secundário |

| **functionpatchv2.083plus.zip** | 1k | 04-06-15 | | **Function Patch v2.0 83 Plus** A patch used to create functions on your calculator. This version of Function Patch is only three lines of programming so it won't take up that much space. |

| **functionpatch.zip** | 1k | 04-05-08 | | **Function Patch** Use it to create your own functions. |

| **functions.zip** | 1k | 19-04-03 | | **Functions** This folder contains 4 programs evaluating the following functions: Haversine, Exponential Integral, Sine Integral and Struve functions. Enjoy! |

| **fuzzysets.zip** | 1k | 15-01-11 | | **Fuzzy Sets** This program will perform basic calculations involving fuzzy sets such as complement, union, intersection and membership graphs. Enjoy! |

| **gausspi.zip** | 1k | 05-06-23 | | **Gauss-Legendre PI Calculator** This is a small program that calculates the first 10 digits of Pi in a very short time. You can look at the source to gain an understanding of the algorithim. |

| **getdigit83p.zip** | 1k | 01-05-31 | | **GetDigit 83 Plus v2.0** A new and improved version of my Get Digit program. Also available for the TI-89. |

| **getzero.zip** | 1k | 13-03-11 | | **Get Zero!** Add the correct signs between the eight random numbers to get an answer of zero. This original math program is sure to provide you with an interesting challenge. |

| **glite.zip** | 1k | 04-09-06 | | **Gradebook Lite v. 1.0** A "LITE" version of Gradebook. Takes up 50% less space, but just as effective if you do not like the other options, such as password protect and custom class names. |

| **grade001.zip** | 1k | 04-04-09 | | **Good ol' grades calculator** Input your classes, then your grades in point format, and if you keep it up, you will know what your grade is every day. |

| **gradecon.zip** | 1k | 99-09-24 | | **Grade Conversion** Coverts grade from seven to ten point scale. |

| **grades.zip** | 1k | 04-12-26 | | **E.O.C. Grades** This program takes your two quarter grades and tells you what you need to get on your E.O.C. in order to finish the year with an A, B, C, or D. |

| **gzsz.zip** | 1k | 02-05-11 | | **GO ZONE and STOP ZONE** This program is excellent for anyone that wants to know what the GO ZONE and the STOP ZONE of an interesection is based on Yellow Light Time, Human Response Time, Velocity, and Deceleration Rate. This program can be very useful to physics students. a MUST HAVE! |

| **hamiltonappropriation.zip** | 1k | 12-10-05 | | **Hamilton Appropriate** This program will compute appropriations using the Hamilton method. Commonly done in Survey classes. Enjoy! |

| **hamiltonianpaths.zip** | 1k | 12-07-19 | | **Hamiltonian Paths** This program will compute the number of Hamiltonian paths in a graph. Enjoy! |

| **happynumbers.zip** | 1k | 17-11-06 | | **Happy Numbers** Will sequentially check integers starting at a given value and list those which are "happy" numbers. A happy number is one in which the sum of the squares of its digits (repeated) will eventually reduce to 1 rather than cycle infinitely. |

| **happyprimes.zip** | 1k | 17-11-06 | | **Happy Primes** Will sequentially check integers starting at a given value and list those which are both "happy" and prime numbers. A happy number is one in which the sum of the squares of its digits (repeated) will eventually reduce to 1 rather than cycle infinitely. |

| **hermitenumbers.zip** | 1k | 20-03-16 | | **Hermite Numbers** This program will compute Hermite Numbers. Enjoy! |

| **highdive.zip** | 30k | 05-05-22 | | **High Dive simulator (IMP year 4)** This is a group of programs that simulate the High Dive section from the Interactive math program year 4. It simulates the diver falling of the ferris wheel. You can set the time for one revolution of the ferris wheel to alter the speed of release. |

| **hillapp.zip** | 1k | 21-10-25 | | **Hill Apportionment** This program performs Huntington-Hill apportionment method. |

| **horner.8xp** | 1k | 02-01-01 | | **Horner** With this program you can calculate the value of the figure |

| **hypergeometricfunction.zip** | 1k | 16-08-05 | | **Hypergeometric Function** There are two programs in this folder, one for evaluating the hypergeometric function 2F1(a,b,c,z) and another for plotting such a function. Enjoy! |

| **inch.zip** | 1k | 02-06-19 | | **One Inch** This is one inch. Just one inch, nothing more, nothing less. I find it funny, but thats just me. :-) |

| **interpl8.zip** | 1k | 11-09-01 | | **Interpl8** This is a tool designed to return an equation that fits your data. No, this is not the built in LineReg function or anything similar. This program will return a polynomial that hits every value. Have fun with this! |

| **iterate.zip** | 1k | 13-05-30 | | **Iterate** This program iterate through the number you pass it, and tells you how many digits the calculator has stored for it. Interesting for those curious how far the calculator calculates its decimals. e is an interesting one to calculate. |

| **jurystability_83p.zip** | 1k | 10-03-22 | | **Jury's Stability Criterion Solver** This program computes the Jury's Stability Criterion table given the polynomial characteristic equation of a digital control system. It both determines whether the system is stable (in other words, if the first term of every odd row is positive) and displays the criterion table used to determine the stability of the system. The basis of the algorithm for this program was found in "Advanced Modern Control System Theory and Design" by Stanley M. Shinners, John Wiley & Sons, 1998. It was originally published in several papers including "A simplified stability criterion for linear discrete systems" (Proc IRE 50, 1493) in 1962. |

| **karhunenloeveexpansion.zip** | 1k | 13-05-11 | | **Karhunen-Loeve Expansion** This program will generate a Karhunen-Loeve Expansion as an approximation to a Wiener Process. The program will ask for the number of Gaussian RV to generate (I suggest the number is small, like 10 or 15) and an ending time (T = 1 is usually standard as beyond this the variance begins to overtake the process theoretically). The program will compute the expansion and plot it along with a linear interpolation of the Gaussian RV input earlier. Great for Numerical SDEs. Enjoy! |

| **kopfrechentrainer.zip** | 4k | 06-03-18 | | **Mental Arithmetics Trainer** You want to get better in doing basic math/arithmetic operations in your head? Then this program is the right choice for you! |

| **kwh.zip** | 1k | 05-01-15 | | **KiloWatt Hour** This program can calculate the total amount of watts an appliance uses per hour. Simply input the rated amount of watts on the appliance and the time it has been running. |

| **lagrangeinterpcoeff.zip** | 1k | 14-08-20 | | **Lagrange Interpolation Coefficients** This program will compute the Lagrange interpolation coefficients for 3 to 6 points. Please read the accompanying documentation for further information. Enjoy! |

| **learne.zip** | 116k | 03-03-23 | | **Learn E!** Another update to Learn E!, a program that will help you learn e to as many decimal places that you want and can fit on the calculator. I fixed the scorekeeping in this version... |

| **learnpi.zip** | 165k | 03-03-23 | | **Learn Pi!** Another update to LearnPi!, a program to help you learn pi to as many decimal places that you want and can fit on the calculator. I fixed the scorekeeping bug... |

| **legendrepolynomials.zip** | 1k | 16-07-05 | | **Legendre Polynomials** There are two programs for Legendre Polynomials and one for Chebyshev Polynomials. |

| **linearfinitedifferenceode.zip** | 1k | 13-11-27 | | **Finite Difference ODE** This program will solve a second order linear ordinary differential equation using finite differencing. Great for numerical analysis or introductory ODE classes. Enjoy! |

| **linearshooting.zip** | 1k | 16-07-17 | | **Linear Shooting** This program performs the linear shooting method for solving ODE boundary value problems. Please read the accompanying documentation for more details. Enjoy! |

| **list_and_matrix_calc.zip** | 1k | 03-07-01 | | **List and matrix size calculators** These programs calculate the size of a list, and a matrix, |

| **listprimes.zip** | 1k | 17-11-06 | | **Prime Numbers** Will sequentially check integers starting at a given value and list those which are prime numbers. |

| **logic.zip** | 1k | 03-12-16 | | **Logic Table Generator** This Program generates the Truth Table for any boolean expression (condition) with up to 4 inputs. It also lists all the Hex digits down the sides for easy conversion between hex and binary. MY AUTHOR NAME IS INCORRECT! |

| **loo.zip** | 5k | 03-01-30 | | **Tyskis Toolkit 4.3 Build 3** With this program you can do many things, for example calculate all sides and in a triangle if you know two sides, convert lenght, distance, area, temperature, weight and volume, view constants, and add integers. The name of the program (LOO) is because it started as a simple loop to calculate all integers between 1 and a specified number, and it turned out as this program. Now extra graphical things and design added! |

| **luhnalgorithm.zip** | 1k | 13-11-12 | | **Luhn Algorithm** This is a program for Luhn's algorithm. This algorithm is one that is used to determine if credit card numbers are valid. Just enter in the credit card number and the program will tell you if it is valid or not according to the algorithm. Great application for discrete math or in a survey class. Enjoy! |

| **magic_squares.zip** | 1k | 05-07-29 | | **Magic Squares** This amazing program generates magic squares (you know, where every row and column and both diagonals add up to the same number) of any size! |

| **mathfunv1.zip** | 9k | 09-01-25 | | **Math Fun Version1** This is a basic program that tests you on simple to somewhat challenging. This is helpful if you need to re-memorize multiplication and squared numbers. At the end of the levels you will receive a grade, and when you answer the questions it will tell you if you are correct or wrong. Most questions in Version 1 of Math fun are not cheat proof which means that if the question is 14*14 then you could put 14*14 as the answer and get it correct. Later versions will eliminate this. |

| **mathhandler.zip** | 2k | 03-03-30 | | **Math Output Handler** Math Handler is a simple program (only 101 bytes) that I wrote at school one day. It takes your input of an expression in the same way that the normal calculator OS does and displays it as a decimal AND a fraction at the same time. It has other features than that, as it is easy to control (simply enter + to exit), doesn't display the fraction if the answer is a whole number, and enables the use of [Ans] when it was previously not enabled. Trust me, it may sound stupid, but it really saves time in simple arithmetic. See the screenshots for examples. Math Handler will save you time! |

| **mathman.zip** | 1k | 01-12-16 | | **Math Man** Solve the math problems |

| **mathpro83.zip** | 2k | 02-04-09 | | **Math Pro83+ ** Practice Addition, subtraction and multiplication! |

| **mathsolv.zip** | 1k | 03-11-22 | | **Math Solver** This is an external math sovler for the calc. |

| **mathtrivia.zip** | 4k | 05-10-19 | | **10 Question Math Trivia** My first BASIC program. Just a simple math trivia. The last question answer is "york" (my math teacher's name) |

| **mathtrix.zip** | 1k | 99-12-05 | | **Dumb Math Trick** Knows the next number by magic, try to prove it wrong. |

| **mathutility.zip** | 1k | 08-11-30 | | **Math Utility v.1.3** Handy math utility with quadratic factoring and more! This has been done before, but not with this level of user ease! You WILL need my set of subroutines, SquidPackX |

| **math.zip** | 1k | 09-12-08 | | **Math** Hone your mental math skills with this simple adding, subtracting, and multiplying game to become a true mathlete! |

| **mcpi.zip** | 1k | 04-03-16 | | **Monty Carlo Pi finder** Uses Monty Carlo simulation to find the value of pi. |

| **mempi.zip** | 4k | 12-07-09 | | **Memorize Pi v1.0** Memorize Pi (or Mem Pi) is a program that can help you memorize the first 2000 digits of pi (or even more with simple modifications)! You can start reciting pi from set places (you don't have to start from the beginning). Although Mem Pi is written in TI-BASIC, it runs at a fast speed and uses clean code. Only 3 variables are used! |

| **mentmath.zip** | 1k | 01-01-06 | | **Mental Math Practice** This program gives the user random numbers that must be added, subtracted, multiplied, or divided. It is very helpful. I am a math tutor, and i wrote it for my students, but i use it to for practice. |

| **methods2.zip** | 3k | 04-08-23 | | **METHODS2** This is some program that'll help you with Maths Methods. I use this program in conjunction with Dipmaths + FACTOR9 (didn't create this myself - just compacted it) |

| **minisummethod.zip** | 1k | 15-10-18 | | **Minisum Method** This program computes the optimal location for a facility using the minisum method. Great for operations research. Enjoy! |

| **modifiedbessel.zip** | 5k | 16-06-30 | | **Modified Bessel Functions** This ZIP file contains 18 programs for BesselI and BesselK functions. Please read over the documentation. Enjoy! |

| **montiehall.zip** | 1k | 04-03-16 | | **Montie Hall Simulation** Runs a selected number trails through the montie hall problem, and then outputs the number of trials that would have had better results if the contestant switched doors. |

| **mschedule.zip** | 1k | 08-11-30 | | **Machines Scheduling** Calculates Upper and Lower Bound and General methods to th optimum solution. |

| **mthmania.zip** | 1k | 02-05-31 | | **Mathmania 1.0** A math program that tests you on basic skills. |

| **multipleofksolver.zip** | 127k | 05-12-21 | | **Multiple of K Solver ** This program solves for Multiple of K, another variation used in Academic Games Equations. This variation requires the student not to find something equal to the expression, but something that differs from the solution by a Multiple of K. Ex: If K=7, 13 would be a correct solution to the goal of 20. Read the readme for more information. And if you already play Equations, then enjoy! |

| **multiply.zip** | 1k | 02-10-23 | | **Multiply** MULTIPLY is a program that you can use to practice answering multiplication problems in your head at different difficulty levels. There are seven difficulty levels to choose from. They are easy, medium, hard, extra hard, super hard, extremely hard, and impossible. Easy will give you numbers that are between 1 and 10. Medium will give you numbers between 1 and 20. Hard will give you numbers between 1 and 50. Extra hard will give you numbers between 1 and 100. Super hard will give you numbers between 1 and 250. Extremely hard will give you numbers between 1 and 500. Impossible will give you numbers between 1 and 1000. After you have made your selection of difficulty level, you enter a number that tells the calculator how many problems you wish to amswer. After you have answered all of the problems, the calculator will give a percentage of how many problems you answered correctly. Remember you are supposed to answer these problems IN YOUR HEAD! |

| **multi_tasking_clock_1.2.zip** | 1k | 10-02-25 | | **Mul(TI)task V1.2** Run a LIVE Clock, and do math AT THE SAME TIME!!! in version 1.2, all the bugs are fixed, but there is still some minor key lag. works 100% with the new TI OS!!! |

| **negativecombination.zip** | 1k | 15-02-28 | | **Negative Combination** This program will produce results when working with C(n,r) where n is a real number and r is a nonnegative integer. So it will work with fractions for n as well as negative numbers. Great for combinatorics. Enjoy! |

| **neville.zip** | 1k | 14-01-06 | | **Neville** This program will perform a Neville interpolation with a set of (x,y) values. It will also have the interpolation table stored in matrix A. Great for introductory numerical methods courses. Enjoy! |

| **nines.zip** | 3k | 04-07-07 | | **Nines** This program calculates how many 9s (or 8s or 7s or ...) there are between to positive numbers. It works with a logarethmic formula, that means you can only take this numbers {1,10,100,1000,10000,100000,...}. I'm working at a better version, but it's only 73 bytes big. |

| **nonlinearshooting.zip** | 1k | 16-07-22 | | **Nonlinear Shooting ODE** This program performs a nonlinear shooting method for solving nonlinear BVP in ODEs. It uses Newton's Method after performing Runge-Kutta to approximate the solution. Enjoy! |

| **nonreal.zip** | 1k | 02-02-16 | | **Nonreal** If you get an error message saying "Nonreal Ans" select quit and run this and you will not get the error message instead you will get the answer. |

| **numencrypt.zip** | 1k | 02-07-26 | | **Number Encryption** You enter 2 whole positive numbers, this program will return a unique positive whole number. You enter in any whole positive, this program returns the 2 numbers it would have used to generate that number. |

| **numtrik1.zip** | 1k | 05-10-11 | | **MBHnumtrik** This program will make an awesome number trick so that no matter what number goes in, the same number goes out. You can enter a bunch of numbers to create your own or generate one randomly. I was 12 when I made this. Amaze people! |

| **palindr84.zip** | 1k | 14-11-27 | | **Palindromic Numbers** A palindrome or palindromic number is a number that has the same value when read from both directions (left to right and right to left). This program investigates the creation of palindromic numbers using the Lychrel process. Full instructions are included in the README file. |

| **palsol.zip** | 4k | 04-10-17 | | **Palindrome Solver** This program takes an inputted number and finds its palindrome. A palindrome is a something that can be read the same way backwards as it can forwards. |

| **parametr.zip** | 1k | 05-09-13 | | **Parametrics** Need help with parametrics in math class? Well download this and the program will solve any motion problems you need. It will even do a problem where you throw an object to a ferris wheel and see if the person will catch it. |

| **percents.zip** | 1k | 04-01-02 | | **Percents** find your grade with this program |

| **perfectnumberprogs.zip** | 1k | 13-11-07 | | **Perfect Number Programs** This file contains two programs, one for determining if an even integer is perfect (PRFCTNUM) and another for determining if a positive integer is deficient, abundant or perfect. Great for introductory number theory or contemporary mathematics. Enjoy! |

| **ponderalindex.zip** | 1k | 12-03-09 | | **Ponderal Index** This program computes the Ponderal Index used in Body Mass calculations. It has metric and English unit capabilities. Enjoy! |

| **populationgrowthovertime.zip** | 1k | 07-09-08 | | **Population Growth** This program models the population growth over time via a starting population defined by the user. |

| **pperwatts.zip** | 1k | 05-01-15 | | **PRICE PER WATTS** This program can calculate how much you pay for a certain amount of Watts. Simply input W: watts, H: hours, and C: the cost per kilowatt hour (this is found on your electric bill). |

| **prgma.zip** | 7k | 03-03-04 | | **MUST HAVE PROGRAM FOR ALL MATH STUDENTS (Prgm A)** This program simplifies the value in Ans into exact form. See the readme for more info. Special thanks to Josh Cohen who helped optimaze this program and added some features. |

| **programs.zip** | 1k | 02-06-19 | | **Programmer's Calculator** This is a program for egotistical programmers such as myself. You enter in the number of programs you have, and then the number of downloads for each program. This displays the total, and the average number of downloads. |

| **properties.zip** | 1k | 02-01-01 | | **Properties of Eguality** This is a BASIC Math program that lists and describes all of the properties. VERY HELPFULL |

| **randmtrx.zip** | 1k | 00-10-20 | | **Random Matrix** Demonstrates how to create a random matrix. |

| **randnum.zip** | 1k | 01-12-15 | | **Randnum** Enter low and high bounds and this program gives you three random numbers between them! |

| **randomchancystuff.zip** | 1k | 16-06-06 | | **Random Chancy Stuff Generator** Generates the following upon request: -Random Integer between inputted numbers -A simulated roll of 5 dice -A Magic 8 Ball reply -A random card draw (includes 2 jokers in the "deck") -A coin flip. I may optimize this later (it needs it) but it is fine how it is except for taking over 2000 bytes of memory. Only the program and the variables B, C, I, and K are needed to run. |

| **random.zip** | 6k | 05-03-13 | | **Rand** Displays a full screen of truly random digits, displays how many of each digit was displayed, then graphs the results. |

| **randum.zip** | 1k | 02-10-25 | | **Random Integer** An Integer-Generating Programme |

| **range.zip** | 1k | 05-08-02 | | **Range Formula Solver** Solves the range formula for range, initial velocity, angle, or gravity. |

| **relativehumidity.zip** | 1k | 15-02-22 | | **Relative Humidity** This zip file contains two programs, one on relative humidity and one on hours in a day. Both contain documentation. Enjoy! |

| **residueofanumber.zip** | 1k | 12-09-03 | | **Residue of a number** This program computes the residue of a number modulo n. Enter in the modulus and the number and the program will produce the residue. Great for beginning students in number theory who don't have a lot of experience programming. Enjoy! |

| **rookpolynomials.zip** | 1k | 14-02-12 | | **Rook Polynomials** This program will display the coefficients for rook polynomials for boards without restrictions. Great for discrete math and combinatorics. Enjoy! |

| **rtnlfit.zip** | 1k | 09-01-05 | | **Rational Curve Fit** Calculates a rational function (polynomial over a polynomial) that passes exactly through a set of data points. Coefficients are stored in lists for your mathematical convenience. Useful for obtaining close approximations of logarithms over large intervals, and for personal amusement. |

| **sigfigs.zip** | 61k | 08-01-12 | | **Significant Figures v1.0** This program counts the number of significant digits in a number you enter. |

| **similitudesv1.2.zip** | 109k | 07-09-08 | | **Similarity v1.2 // Similitudes v1.2** //English: Similarity v1.2: This very practical program will give you all the characteristics of the different similarities you'll enter. It also detects the equations that are not similarities. It can be run normally or via MirageOs. An english and a french version are available. //Français: Similitudes v1.2 Ce programme vous donnera toutes les caractéristiques des différentes similitudes que vous rentrerez. Il détecte aussi les équations qui ne sont pas des similitudes. Il peut être lancé normalement ou via l'application MirageOs. |

| **solvformule.zip** | 21k | 18-04-28 | | **SolvForMule** This set of programs lets you easily plug in numbers like you would for a formula except it only asks for the dimensions. The calculator does the rest. Ex: If you plug in the length, width, and height for for a prism, it solves the formula and gives you the surface area or volume. |

| **somecombinatorics.zip** | 4k | 15-02-15 | | **Some Combinatorics** This zip file contains seven separate programs that will compute common things with combinatorics, including a very short Pascal triangle row program. Each file has its own documentation. Enjoy! |

| **stakrv1.1.zip** | 3k | 17-05-03 | | **STAKR** STAKR is a stack-based calculator, similar to HP stack-based calculators. |

| **standarddivisorvoting.zip** | 1k | 13-08-23 | | **Standard Divisor Voting** This program computes the standard divisor and a modified standard divisor used in apportionment problems using the Hamilton or Jefferson plans. Great for survey students studying apportionment or voting schemes. Enjoy! |

| **stdnot.zip** | 1k | 05-08-04 | | **stdnot** This is a small TIBasic program I wrote which will analyse the decimal number in Ans and try to write it under standard mathematical notation, either as a/b, a/b sqrt(c), or as a/b pi. It'll work for fractions where b |

| **supcat.zip** | 1k | 18-10-02 | | **super catalan numbers** This program computes the super Catalan numbers from combinatorics. Just Enter in the values and it will compute them. Enjoy! |

| **timemath.zip** | 3k | 10-02-25 | | **TimeMath** Does math...with Time! Have fun! Note: For those of you with 2.53MP, Set Mode to Classic. Mode change not done automatically to preserve interoperacy with 2.4x |

| **tools.zip** | 1k | 20-11-12 | | **Tools** simple math tools |

| **tvsize.zip** | 1k | 00-02-18 | | **TV Dimensions v0.1.1** Program that will give you the width and height of a TV screen given only the diagonal. It uses the Pythagorean theorem and a ratio of 4:3 between the width and height. Future versions may include widescreen ratios (16:9) or the ability to get a diagonal based on height or width. |

| **twenty4.zip** | 1k | 00-09-17 | | **Twenty4** Finds solutions to twenty-four cards. |

| **unionandintersection.zip** | 2k | 14-10-13 | | **Union and Intersection** This program returns the union/intersection of two sets. Don't forget to use braces {} when inputting the sets or you will get a syntax error! |

| **venndiagram.zip** | 3k | 13-12-12 | | **Venn Diagrams** This program solves survey problems typically asked in math models or survey classes. It will do 1, 2, or 3 sets. Please read the documentation for information on entering in the data. Enjoy! |

| **vertical.zip** | 1k | 00-07-17 | | **Vertical Motion v1.10** This program calculates the distance from the ground of an object traveling vertically. |

| **violin.zip** | 1k | 24-05-08 | | **Violin Math by Reese Turra** Calculates how many notes you play in one practice, one week, one month, and one year for any instrument! |

| **voting.zip** | 1k | 13-09-03 | | **Voting** This program will compute the average constituency, the absolute and relative unfairness and the Huntington-Hill Number for an apportionment study. The user enters in the information as asked and the program does the rest. Please read over the description for more details. Great for survey of mathematics students. Enjoy! |

| **wannabhp.zip** | 1k | 07-10-26 | | **I Wanna Be an HP** This is just a run-of-the-mill RPN calculator. RPN means "Reverse Polish Notation" and is the default notation used on HP calculators, so that's how I came up with the title. The main difference between this RPN program and the others is that it's prettier -- there's a little title screen with an anthropomorphic TI-83 saying "I WANNA BE AN HP!" and the program itself runs in a pretty split-screen mode with 3D-looking buttons. I wrote it for CalcG.org's contest (somebody else won). All you have to do is download it, unzip it, send WANNABHP to your calculator, and run it. The rest is explained on-screen. |

| **waveeq.zip** | 1k | 18-10-02 | | **wave equation** This program solve the one-dimensional standard wave equation. The user enters in the information and the program outputs each level of iteration. It uses the finite difference method. Great for numerical PDE's. Enjoy! |

| **weekfind.zip** | 1k | 03-11-12 | | **Weekday Finder** This is a 100% guarenteed accurate Day of the week Calculator. I'v tested it from 1904 through 2031 and it works perfectly. You'd actually be amazed at how many people don't know what day of the week they were born on, and find it amusing to know. |