Getting Started:
Make math and science easier (and more fun) with free graphing calculator programs and games from calculatorti.com. You can make the process of transfering the application to your calculator sweet and simple with Texas Instrument's handy TI connect software. Install it on your computer and grab your GraphLink Connection cable (USB cable) to plug in your calculator. Then you can start downloading any of our programs and games (Wow! There's a lot!) from our libraries to transfer and install them to your calculator. Have fun!Title:  Brief Desc.  Brief Description:  Req.  Requirements:  Category: 

Surface Area of a Revolution  X Axis  TI89 graphing calculator program, finds the surface area of a revolution around the x axis. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Price Index  TI89 graphing calculator program for calculating price index. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ BusinessFinance ] 

Central Beta Function  TI89 graphing calculator central beta function program. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Area of a Polygon: Radius of Inscribed Circle  TI89 graphing calculator program for calculating the area of a polygon. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Ellipse Eccentricity and Focal Length  TI89 graphing calculator program for calculating eccentricity and focal length of an ellipse. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Interest Over Time  TI89 graphing calculator program for calculating interest over time. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ BusinessFinance ] 

Reduce Fractions and Convert Decimals to Fractions  TI84 Plus and TI83 Plus graphing calculator program for reducing and converting factions. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Differentiate Equations  TI84 Plus and TI83 Plus graphing calculator program. Differentiates 1st to 5th degree equations. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Equation Solver: Substitution Method  TI84 Plus and TI83 Plus graphing calculator program for solving equations using substitution. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Memorize Pi  TI89 graphing calculator program which helps in memorization of pi. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Equation Saver and solver  TI89 graphing calculator program for saving and solving equations. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Algebra ] 

Indefinite Integration  TI89 graphing calculator program for solving indefinite integration problems. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Binomial Probability  TI89 graphing calculator program for calculating binomial probability. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Statistics ] 

Graphing Inequalities  TI84 Plus and TI83 Plus graphing calculator program for graphing inequalities. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Completing the Square  TI89 graphing calculator program for completing the square. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Algebra ] 

Slope Field Program  TI84 Plus and TI83 Plus graphing calculator program. Simplifies the process of creating and analyzing slope fields. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Directed Distance Between 2 Parallel Lines  TI84 Plus and TI83 Plus graphing calculator program for calculating the directed distance between 2 parallel lines. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Graphing Regular Polygons  TI89 graphing calculator program for graphing regular polygons 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Graphing ] 

Calculating Pi  TI89 graphing calculator program calculates Pi. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Tangent Line of a Curve  TI89 graphing calculator program, calculates the tangent line of a curve. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Trigonometry ] 

Multiply Factors or Polynomials  TI84 Plus and TI83 Plus graphing calculator program for multiplying factors or polynomials. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Trigonometry Notes: Triangles  TI89 graphing calculator program, contains notes on triangles in trigonometry. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Trigonometry ] 

Complex Analysis  TI89 graphing calculator complex analysis program. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Graphing Equations and Inequalites  TI89 graphing calculator program, simplifies graphing of equations and inequalities. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Graphing ] 

Area Under a Curve  TI89 graphing calculator program for calculating the area under a curve. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Simpson Approximation: Area Under a Curve  TI84 Plus and TI83 Plus graphing calculator program. Uses Simpson method approximations to approximate the area under a curve. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Integrals: Area Under a Curve, Area Between 2 Curves  TI84 Plus and TI83 Plus graphing calculator program for calculating the area under a curve and the area between 2 curves. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Simpson's Rule: Area Under a Curve  TI84 Plus and TI83 Plus graphing calculator program for approximating the area under a curve using Simpson's method. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Delta and Epsilon  TI89 graphing calculator program for formally defining limits with epsilons and deltas. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Algebra Tools: lines, binomials, parabolas, units and more  TI84 Plus and TI83 Plus graphing calculator Multifunction algebra program, contains functions for linear equations, binomials, parabolas, units and more. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Conics: Plane Algebraic Curves  TI89 graphing calculator conics or plane algebraic curves program. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Centroid Program  TI89 graphing calculator program for calculating the centroid of a function. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Maclaurin Series  TI84 Plus and TI83 Plus graphing calculator program. Displays the 7 Maclaurin series. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Simultaneous Nonlinear Differential Equations: Heun's Method  TI84 Plus and TI83 Plus graphing calculator program. Uses Heun's method to solve simultaneous nonlinear differential equations. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Improved Euler Method  TI84 Plus and TI83 Plus graphing calculator program. Numerically approximates solutions to firstorder differential equations using the improved Euler method. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Differential Equations: Heun's Second Order Method  TI84 Plus and TI83 Plus graphing calculator program for solving differential equations using Heun's second order method 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Reference Angles of a Unit Circle  TI89 graphing calculator program for calculating reference angles of the unit circle. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Area Under Curve: Monte Carlo Method  TI84 Plus and TI83 Plus graphing calculator program. Calculates the area under a curve using the Monte Carlo method. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Finding the Discriminant of a Polynomial  TI84 Plus and TI83 Plus graphing calculator program for finding the discriminant of a polynomial. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Cartesian Plane Program  TI89 graphing calculator program for calculating midpoint, slope, and distance on a Cartesian Plane. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Special Right Triangles  TI89 graphing calculator program contains notes and guides to special right triangles. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Slope of the Tangent Line of a Function  TI84 Plus and TI83 Plus graphing calculator program. Calculates the slope of the tangent line of a function. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Root Approximation: Newton's Method  TI84 Plus and TI83 Plus graphing calculator program. Uses Newton's method of approximation to find the roots of a function. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Find the Discriminant  TI89 graphing calculator program for finding the discriminant. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Algebra ] 

Cubic Spline Solve  TI89 graphing calculator cubic spline program. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Algebra ] 

Riemann Sums and Definite Integral of a Function  TI84 Plus and TI83 Plus graphing calculator program for calculating Riemann sums and the definite integral of a function. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Derivatives and Variation Tables  TI89 graphing calculator program gives detailed information on functions including derivatives and variation tables. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Graphing Rectangle Approximation Methods  TI84 Plus and TI83 Plus graphing calculator program for Graphing rectangle approximation methods. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Area Under the Curve of a Function: Monte Carlo Method  TI84 Plus and TI83 Plus graphing calculator program for finding the area under the curve of a function. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Parabola intercepts plus  TI89 graphing calculator program for finding the intercepts of a parabola. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Algebra ] 

Derivative Approximation with Secant Line Slope  TI84 Plus and TI83 Plus graphing calculator program. Compares the secant line slope of a function to its derivative. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Graphing Rectangle Approximation and Riemann Sums  TI84 Plus and TI83 Plus graphing calculator program for graphing rectangle approximation and Riemann sums. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Geometry Basics  TI89 graphing calculator program for basic geometry problems. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Limit of a Function: Infinity  TI84 Plus and TI83 Plus graphing calculator program. Finds the limit of a function that approaches infinity. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Calculate Pi to Thousands of Places  TI89 graphing calculator program for calculating Pi. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Algebra Formulas  TI84 Plus and TI83 Plus graphing calculator Program containing several common algebra formulas. Great for tests and quizzes. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Variable Substitution  TI84 Plus and TI83 Plus graphing calculator program for variable subistitution. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Hurwitz Zeta Function  TI89 graphing calculator program. Performs opperations related to the Hurwitz Zeta Function. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Area of a Regular Polygon  TI89 graphing calculator program for calculating the area of a regular polygon. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Tangent of an Angle Between 2 Lines  TI84 Plus and TI83 Plus graphing calculator program for the Tangent of an angle between 2 lines. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Logarithms  TI84 Plus and TI83 Plus graphing calculator program for calculating and manipulating logarithms 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Derivatives of Common Trigonometry Functions  TI84 Plus and TI83 Plus graphing calculator program lists the derivatives of common trigonometry functions. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Average of Randoms Equals Half of the Maximum  TI89 graphing calculator program that demonstrates that the average of randoms is equal to half of the maximum. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Statistics ] 

Binomial Expansion  TI89 graphing calculator program for binomial expansion. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Algebra ] 

Binomial Expansion: 14th Degree  TI84 Plus and TI83 Plus graphing calculator program expands any binomial to up to the 14th degree. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Interpolation and Extrapolation  TI89 graphing calculator linear process calculations, Interpolation and Extrapolation program. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Statistics ] 

Geometric and Arithmetic Series, Combinations and Probability  TI84 Plus and TI83 Plus graphing calculator program for problems involving series. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Science and Engineering Statistics  TI89 graphing calculator science and engineering statistics program. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Statistics ] 

Bisection (Interval Harving)  TI89 graphing calculator bisection  interval harving program. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Newton's Method Show Work  TI84 Plus and TI83 Plus graphing calculator program. Uses Newton's method to find the zeros of the function. Shows work. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Volume and Rotation of a Solid  TI84 Plus and TI83 Plus graphing calculator program for calculating the volume and rotation of a solid. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Simplify Calculus Answers  TI89 graphing calculator program, simplifies calculus answers for homework, tests and exams. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Limit Comparison Test  TI89 graphing calculator program, tests improper integrals for convergence of divergence using the Limit Comparison Test. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Oblique and Right Triangles  TI89 graphing calculator program, performs calculations related to oblique and right triangles. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Trigonometry ] 

Statistical Inventory Methods  TI89 graphing calculator program for calculating statistical inventory methods. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Statistics ] 

Approximating Area Under a Curve  TI84 Plus and TI83 Plus graphing calculator program. Approximates the area under a curve. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Function Sequences  TI84 Plus and TI83 Plus graphing calculator program graphically and numerically representing sequences of all types of functions. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Fourier Theory  TI84 Plus and TI83 Plus graphing calculator program. Explores Fourier Theory by creating complex waveforms using ten different frequencies. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

4th Degree Quadratic Solve  TI89 graphing calculator program for solving 4th degree quadratics. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Algebra ] 

Cramer's Rule: Systems of Equations  TI84 Plus and TI83 Plus graphing calculator program solves systems of equations using Cramer's Rule 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Fourier Series Program  TI89 graphing calculator program for creating fourier series. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Bezout's Identity and Coefficients  TI89 graphing calculator B?zout's Identity program. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Algebra ] 

Least Squares Regression Line  TI89 graphing calculator least squares regression line program. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Statistics ] 

Newton's Method  TI89 graphing calculator program for finding the zeros of a function using Newton's Method. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Arc Functions: ArcSecant, ArcCosecant, ArcCotangent  TI89 graphing calculator program, displays the arc functions. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Trigonometry ] 

Equation, Slope, X Intercept and Y Intercept of a Line  TI84 Plus and TI83 Plus graphing calculator program for finding the slope, equation and intercepts of a line. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Normal Integral Value  TI89 graphing calculator program, calculates the value of the normal integral 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Geometric Systems of Equations  TI89 graphing calculator program for solving geometric systems of equations. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Geometry ] 

Average Rate of Change  TI84 Plus and TI83 Plus graphing calculator program for calculating the average rate of change. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Wallis Product  TI84 Plus and TI83 Plus graphing calculator program. Calculates the Wallis product of a function. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Differential Equations: Euler's Method  TI84 Plus and TI83 Plus graphing calculator program for solving differential equations using Euler's method. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Alpha Function  TI89 graphing calculator program for defining the Alpha function. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Residue Values for Complex Integrals  TI89 graphing calculator program for finding residue values for solving complex integrals. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Euler Approximation of an Antiderivative  TI89 graphing calculator program calculates the Euler approximation of the antiderivative of a function. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Calculus ] 

Linearization Tables  TI84 Plus and TI83 Plus graphing calculator program provides complete linearization tables using symbolic method. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 

Complete Algebra 2 and Trig Program  TI84 Plus and TI83 Plus graphing calculator trig and algebra program. Covers 55 algebra and trigonometry topics including synthetic division, conics, statistics, quadratics and more. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Logarithms: Convert, Evaluate and Graphing  TI84 Plus and TI83 Plus graphing calculator program for converting, calculating ang graphing logs. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Factor or Solve 2nd Degree Polynomials  TI84 Plus and TI83 Plus graphing calculator program for factoring or solving 2nd degree polynomials. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Algebra ] 

Basic Statistics Collection  TI89 graphing calculator statistics program, includes mean, median, range, populations, variance and more. 
Requires the ti89 calculator.
(Click here for an explanation)

[ Programs ] [ ti89 ] [ Statistics ] 

Derivatives of Trig Functions  TI84 Plus and TI83 Plus graphing calculator program lists the common derivatives of trig functions. 
Requires the ti83 plus or a ti84 model.
(Click here for an explanation)

[ Programs ] [ ti83/ti84 ] [ Calculus ] 