How to add programs to ti 84 plus silver edition

It is very fast and does not take up a lot of memory. It also simplifies the square root if possible. Also it is better suited for decimal numbers. Three Divisor Programs Three divisor programs that uses the augment -command to find the right divisors.

Based on prime factor programs, they only count up to the square root of the biggest prime factor. Divisors This program gives you the divisors of a positive integer, and also tells you if the number is abundant, deficient or perfect. It uses a list when searching, and when it finds a factor, the number is divided by it. So it is a converted prime factor program, and very fast compared with the typical program. If the measure is in degrees, it is converted to Degrees, Minutes, and Seconds and also radians.

Dot Product This program calculates the dot product of two vectors. This little program has a much bigger capacity than the built in one, and is really fast. Instead they had tables which aimed to cover every possible compact notation, PHEW! There is also a link to a page on the subject and some more info on the programs in the text file.

Update: Both programs have been improved to perform better, and give smaller unit fractions. It has a built-in conic, quadratic, cubic, and numeric solver. It even solves linear systems, distance, midpoint, slope, point-slope, and many more.

Simplifies radicals, pi, fractions, and complex numbers. Requires OS 5. It has only bytes. The program can handle even the tricky equations, without you having to make a guess for the root. Just press 1: QUIT then. The answers are in memories A, B, C, and D. Eratosthenes Sieve This program is a demonstration of Eratosthenes sieve.

First it draws up all numbers , and then begins with eliminating 1 and all numbers that have a factor 2, and then the numbers with a factor 3, and then a factor 5, and finally the numbers with a factor 7, except numbers 2, 3, 5, and 7, so that in the end just the prime numbers remain. Slope field with Euler solution Enter a diff eq and see the slope field and a specific solution with initial condition.

Exact Trig Values This program gives you exact values for trigonometric functions. It works so that for every multiple of 7. Of course it works for radians as well. The program shows the input on the result screen, if that differs from the value on top. I enclose the link to the page I've been using for information.

If you are uncertain of what level to use, start at level 0, and the program will proceed from there onto level 4. The maximum integer within the root-sign is , and the maximum denominator in the constant outside is The program searches for the exact solution both from within the root-sign and outside for the constant.

The maximum numerator and denominator when it searches is 25, but the maximum denominator for what it finds, either the value within the root-sign, or the constant outside, is This includes 7. The programs then count from there with a conventional division algorithm, to establish the result, and save you time.

The numbers from which they count can be found in List2. Please let me now of any failure you have experienced with them! Just bear in mind that a number can be counted several times, multiplied with various factors.

The programs work best when the number consists of two large primes. FACTOR1 This is a more comprehensive version of the program: It now solves real rational polynomials with rational real and imaginary roots. If there is something left over of the polynomial, it is texted out on the graph screen, not as before given as a list of coefficients.

It is really small, considering what it can do. With this update the program has gotten more abilities. If the polynomial only has rational factors it will be completely factored. This makes it more likely that it finds all the integral factors. The program is now three times faster for the first equation above, than the original version.

This comes at a cost of an additional bytes. Function of 4th Order Quartic Equation - v1. Some formulas 1. If, for example, you are a teacher and want to demonstrate that an expression of fractions might be written in more than one way.

Or, you can start with the answer. Which should be a lagom task for your pupils. Reducing Fractions Two programs which reduces fractions. AFRAC0 works with continued fraction, and has a capacity to solve fractions with a numerator and denominator of over a million.

It can handle fractions with six digits in the numerator and denominator. If the number is irrational, it comes out in its decimal form. As it also does if the fraction is too big. These two programs should be useful as subroutines, or in their own right. FRAC and FRAC1 These programs can handle really large fractions, they are limited only by how many digits you can read, provided that there is an arithmetic expression. The Program displays: mean, median, standard deviation, variance, relative frequencies, and graph.

After the program runs, the unique data is then displayed in L1 with frequencies in L2 and relative frequencies in L3. The original data is moved to L4 and sorted in L5. So the program can even handle fractions, and i. It is necessary as a subroutine in a program that factors quadratic equations with rational coefficients, for example. It doesn't matter in which order the numbers are entered, nor does it matter if they are positive or negative.

Just input the numbers as a list. Other than that it works the same way as the above program. Greatest Common Divisor Two simple programs to determine the greatest common divisor, when there are more than two values involved. One works like when you do it on paper, and the other one shows the mathematics behind. Gives its mean, standard deviation, and variance, and 3. Geometry - V1. GeometrySolver This program helps solves geometry problems. Geometry Formulas Includes 17 different area, volume, and surface area solvers.

Graph 3D v4. You can edit the window settings, zoom settings, and format from within the program. You can trace over any graph, and rotate and zoom graphs from the graphscreen.

Among many other tweaks, this version overhauls the rotation code to be faster and more accurate compared with its monochrome ancestor. Heron's Formula This program finds the area of a triangle using Heron's formula. You can either give the length of the three sides: A,B, and C, or you can give the coordinates, in which case you get the length of the three sides in decimal and simplest radical form.

The area is also given in simplest radical form, and as a decimal number. It suggests the number of bars, or classes, K for your data, but you can override this. Also, the width range is given corresponding to your choice of K. You enter width W from the range. A whole number width is best, if possible.

You will see the boundaries of each bar, the frequency and relative frequency of each class. Homogeneous Diff. Equation 2nd Order - v1. Solve a linear equation in one variable, 2. Find the equation of a line with given slope m going thru a given point x,y , 3.

Find the least common denominator or LCD. Examples are given. Included are horizontal and vertical lines. Includes an example. An example is included in the program. The graph of the distribution, and 4. Look at the screenshot. You use X for the variable, and get the numerical value. Then you get an estimate with Simpson's method for intervals. Now with the fundamental theorem of calculus. It works so that it chops up your expression into smaller bits, to give you its relevant formulas.

That way you do not have to search for them. It is made to be as forgiving as possible, which of course comes with a drawback: you sometimes get more than you wanted.

If you type sin x cos x , for example, you just get the formulas for sin and cos, but not the formula for how to multiply them correctly. If the data is from a sampling distribution, the standard error of the mean is also found. If you have a function you can use the CALC menu to find a value, find a zero of the function or find a maximum or a minimum.

What if you only have equally spaced data points available without any functions? It is still possible to use only that data to obtain a value, find a zero of the function or find a maximum or a minimum. The process of doing this is referred to as Interpolation. In general, the data is in the form of a table, however, it is not required that the data come from a book. It can also have been generated by your calculator or a computer programmed with a set of equations to complex to be entered into your calculator.

You can even obtain the data points from an experiment in a laboratory. Accurate to at least the outputted 10 digits. Irrational Equations This program solves many irrational equations, but not all of them. To keep the size down, it is more than bytes with its four subroutines, I have been forced to compromise. Kaprekar's Constant Take any 4-digit number that does not repeat the same digit, and sort its digits in ascending and descending order, to get two numbers. Then subtract the smaller number from the bigger and repeat the process with the number you then get, and you will find yourself with as a result, in less than 8 iterations!

There are also at least five more constants, in bases other than 10, that follow from the same procedure. Least Common Measurer Two simple programs to determine the least common measurer, when there are more than two values involved. Linear Systems Solves a system of equations. Type systems just like in textbooks. Two points, 2.

Point-slope, 3. Thru a point, parallel to a given line, 4. Thru a point, perpendicular to a given line, 5. Slope and y-intercept, 6. Standard form, 7. The line is vertical thru a given point, 8. Its intercepts. In the lists you will see each actual y, the predicted y, the error and relative error of each y. Logarithm Solver A logarithm solver where you input two known variables and get the third unknown. The program starts in the graph window where you get the basic infomation, it then asks for the unknown variable, after wich you are promted to give the two known variables.

After the calculation the variables used A, B and X hold their respective value. Version 0. Math Master v2. Slow, but still making headway. Determinant Finder for 2-by-2 Matrices Find the determinant of a 2-by-2 matrix easily. Particularly useful for students required to show intermediate workings. Missing Side Finder If you have enough sides to find the area, surface area, or volume of any following shapes: circle, trapezoid, triangle, rhombus, cone, cylinder, pyramid, and sphere, you will get the answer immediately after inserting the following sides that need to be necessary to find the side that you are looking for.

I would appreciate feedback so I can improve it as needed. Newton-Raphson This is an application on Newton-Raphsons method, which lets you guess an initial value of X. You must then choose a value for X that not gives division with null, or lies outside of the functions defined X-values. However there are some tricks here, that lets you solve these kind of equations, but with the limitation of the root being numerically smaller than The result shows z-scores of the boundaries.

The graph automatically displays. Number to String Four small and simple number to string routines, that you can use in your programs. Two for real numbers, and two for complex ones. This update includes bug fixes. The longer ones gets increasingly faster than the smaller ones, the bigger the numbers.

These programs contains the primes of the orders, , , , , , , , , , and , which are used when you search for numbers of orders bigger than , and so they are much faster. The ODDS against, and in favor, of an event with a known probability of happening, and 2.

Interference of Two Oscillations v1. The result is displayed in a graph, depicting the three oscillations and the numerical results. Outlier Finder This program finds outliers in a list of data. It also has the option of deleting them. 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. Case one you use when for example the VAT is included in the price, and you want to find the net price. Case three is used when you have got a sum as a percentage of another sum. Case four is for finding a certain percent when you have a sum or a number, and want to increase or decrease it with a certain amount. So you must be observant. Perfect Numbers The first seven perfect numbers are: 6, 28, , , , , and There are presently 49 known such numbers, which are defined by the fact that the sum of their divisors is twice the number itself.

For example 6 has the divisors: 1, 2, 3, 6, which adds up to There is for now no known odd number that is perfect.

I have made one small program to demonstrate these numbers. Also given is n! The program may be considered as completion to tangline84 in the same directory. Pi Eater v1. You choose the amount of pie to eat, first an amount, then whether that's times pi or not, and finally if the angle is degrees or radians.

Along the way, the program will show you the sine, cosine, and tangent, of the angle of pie you have eaten so far. A fun way to visualize angles and trigonometry.

Finding Equation of a Plane Using three points that are entered in a user friendly interface, you can get the equation of a plane, assuming the variable in the answer do not take up more than three spaces.

Basic but Effective. Platonic Solids A math program that gives the properties of the platonic solids. It can calculate the inradius, midradius, circumradius, surface area and volume of a platonic solid by a given side. The first polynomial will then be divided by the second, and the quotient will be divided by the third, and so on. There are no other limits to the number of polynomials you can enter than memory, and of course the degree of the first polynomial. You will get the coefficients of the quotient and the remainder for each step.

You can use any one variable A to theta. The terms can be entered in any order, and there can be more than one of the same power. The linear factors are found in the conventional way, and above that the program attempts to "look" at the rest. First you enter the degree, then the coefficients, and then you answer wether to look for non real roots or not.

Only rational roots though, not irrational. Bug fixes in this version. You enter the equation as it stands in the text book. You can use any variable A to theta. Then you answer wether to search for non real roots or not. APOLYFC1 This program gives you the integral factors of most polynomials in one variable, and writes them out in factored form, when you enter them like they would appear in a text book.

You can use any variable from A, to Theta, and there can be like terms in the expression, and it doesn't matter in which order they are entered. It gives you the linear factors of the polynomial, and if there is something more, it gives you the polynomial of the rest. The input is as simple as possible: You give the degree, and then the coefficients.

Note that the "COEF. You can use any variable A to Theta. You input the polynomials degree and then its coefficients. Then you choose wether to search for non-real roots or not. If the substitution fails, the rest of the polynomial will be displayed together with any of the factors on the graph screen.

So this is a program for real numbers only. It finds all linear factors for you, and if there is more to factor, the rest of the polynomial is shown as a list to you. Should your guess fail, the same procedure will repeat again.

So, you can train your skills in factoring. Just remember to guess factors of at least second degree! The linear factors are found in the conventional way, and if there still remains anything of the polynomial, the program attempts to "look" at it, to find an even divisor. It is also very fast compared with other programs of this type. You enter the degree and then the coefficients of the polynomial. You will not be able to transfer any programs to your calculator without it.

Using TICalc. From here, click on basic, then math. You can download any program you find interesting by clicking on its name. Step One: Open the file you downloaded, and drag the files inside of it onto your desktop this will extract the files, as most come in the form a. Plug your calculator into your computer using your charging cable.

Turn on your calculator. The computer does not include all electronics. Low contrast. The contrast on the computer may have been lowered. Dead batteries. The batteries may be in the middle. The emergency battery is discharged. RAM problem. Software problem.