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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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This powerful program performs the nonimplicit differentiation of any function f(x) to find f'(x), including f(x)=cx^n, f(x)=cx, f(x)=c, f(x)=ax/bx, and f(x)=ax*bx. It even finds the six major triginometric identities for derivation. A perfect tool for calculus students!
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This small but powerful program will take any circle with center (x,y) and radius r and output a simplified equation for the circle. Works even with x, y, or r equal to zero. Doors CS v4.0 optimized.
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This useful program will approximate the area under a curve or line to arbitrary accuracy using the Monte Carlo method. The realtime progress meter shows how far the program has progressed for timeconsuming high accuracy calculations, and the standard interface makes it easy to navigate. Doors Cs v4.0 optimized.
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Graph3D v4.0 is a fullyintegrated 3D graphing utility that can graph up to 10 simultaneous 3D equations. 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. This complete recoding of the program optimizes the size and speed of the program, providing a cleaner and more intuitive interface. Doors CS v5.0 optimized and certified.
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This program can convert to and from any base between base 2 and base 36, using the appropriate alphanumeric notation. Uses a custom algorithm that should be relatively fast, and can handle numbers up to 10^99. v1.1 fixes a bug that went unnoticed for 11 years.
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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.
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Enter a radical to be simplified. Best with numbers of less than five digits.
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Have you ever wanted to graph an equation in the form X=, when the builtin graph tools ony allow you to enter an equation in the form Y=? Now you can! With this tool, you can enter any equation with any variables, tools, and symbols allowed by the builtin Y= grapher, view the graph using your current window settings, or view the table using your current table settings! Check out the screenshots; Doors CS v4.0 optimized.
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Have you ever wanted your calculator to be able to act as a cash register? Well, now it can! This program lets you set a tax rate, quantity, price each, and taxable or not for any number of items. It will add up the total, and even figure out change! Doors CS v4.0 optimized.
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This is a small yet powerful program that will find the lowest common multiple of any numbers, and can work on two through infinity numbers. It will automatically and quickly find the LCM in rational form. Useful!
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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.
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This program finds the solutions for the 24 game, a math puzzle where the 4 common math operators are used to create an expression equal to 24 with 4 random integers from 19. Just input the four numbers and, with time, this program will output the solutions. Compatible with TI83/84/+/SE/CSE/CE.
Check out http://www.cemetech.net/forum/viewtopic.php?t=11386 or the readme for more information.
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This handy program lets you graph an equation or expression without leaving Doors CS. You can graph in the form Y=, view the resulting equation, and use it for math purposes. Check it out!
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Given the vertices of a quadrilateral, this program will draw the shape and compute the lengths of the sides and the diagonals. I ported from a QBASIC program I saw in a Geometry Textbook in March 2003. I updated it 11 days shy of a full decade later to be more polite in restoring graphscreen settings and to add a missing file to the zip. Also supports the TI84 Plus C Silver Edition.
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Advanced PieChart Creator v1.0 is a wizard that will help you create different piecharts. It will prompt you for the number of sections and the percentage of each section and then draw the piechart. The program will also prompt you for a title for your chart. It can be saved as a picture and published. Very useful, considering piecharts are not builtin!
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This is version 2.0.4 of the TIFC. The previous version only supported roughly 68 conversions, took 4 programs and a picture variable, and was around 6kb in size. Version 2.0.X supports the usage of a single program, and boasts 708 conversions available in this single program of just over 7kb in size. It is also available for the TI73, TI82, TI83, TI83+/84+ and TI84+CSE, with the potential of being programmed on other calculators at a later date.
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Uses a list of primes to output the prime factorization of virtually any number! (The list of primes only contains 999 primes, so any number with a prime factor over 7907 won't work) To use, execute the program, input the number, and keep pressing enter to see each prime factor. The factors will also be uploaded to List 1. This program is EXCELLENT for math tests and assignments.
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This program can help anybody doing conic sections in Precal, Algebra 2, and perhaps Geometry. You input variables a,b,c,d,and e in general form and the calculator will output:
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The equation in standard form,
Centerpoint,
Lengths of Major and Minor axises,
and Focal points.
It has capability of running with Mirage OS but it does not output the general equation (ax²+bx+cy²+dy+e=0) at the top. Conic sections program coming soon 
This program factors trinomials of the form ax^2+bx+c. If no factorization is possible, the program tells you. Factors are given in pretty form and with correct signs (no  or +).
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This is a simple math question answering game. Has questions of varying difficulty. Has a high score feature. Ported from the TI84+CE
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A collection of function solvers useful for math from middle school to grad school!
This is still in beta so glitches and a smaller library of functions will be here.
If you have any problems with this or suggestions for functions, tell me!
Functions:
 Pythagorean Theorem
 Quadratic Formula
 Area Calculator (Triangles, Rectangles, Circles, Ellipses)
 Volume Calculator (Prisms (Triangular, Rectangular, Pentagonal, Hexagonal), Pyramids (Triangular, Rectangular, Pentagonal), Cylinders, Spheres)
 Temperature Conversions (Celsius, Fahrenheit, Kelvin)Changelog:
Version 0.3.0
 Temperature Conversions Added
 Fahrenheit, Celsius, and Kelvin can all be converted between each other.
 Version on title screen changed from "v0.1"
 Versions are now labeled as "0.1.0, 0.1.1, 0.1.2" instead of "0.1, 0.1.1, 0.1.2".Version 0.2.1
 File changed from .8xp to .zipVersion 0.2.0
 Quadratic formula now tells you if X is undefined instead of crashing
 Area calculator added
 Triangle
 Rectangle
 Circle
 Ellipse
 Volume calculator added
 Prism
 Rectangular Prism
 Triangular Prism
 Pentagonal Prism
 Hexagonal Prism
 Pyramid
 Triangular Pyramid
 Rectangular Pyramid
 Pentagonal Pyramid
 Cylinder
 Sphere
 "Back" Function added to all menusVersion 0.1.0
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 First version ever!
 Pythagorean Theorem and Quadratic Formula added 
A little game made to test your memory and calculation of perfect squares and cubes. I will be happy to hear about any bugs you find or feedback you have!
High Scores in SQUARES mode:
1. sirdudeman  64
2. TortillaMan  45High Scores in CUBES mode:
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1. sirdudeman  18
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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