Graphers | |||

Function evaluator and grapher | Graphs and tables of values for functions you specify. | ||

Excel grapher | Downloadable Excel spreadsheet that graphs functions you specify. [Note: Macros must be enabled in Excel.] | ||

Excel first and second derivative graphing utility | Downloadable Excel spreadsheet that automatically graphs any function you enter as well as its first and second derivatives. [Note: Macros must be enabled in Excel.] | ||

Surface graphing utility Updated Oct 2017 | A utility that lets you graph surfaces (explicit, parametric, and implcit) in 3-D perspective | ||

Excel surface graphing utility | A downloadable Excel spreadsheet that lets you graph surfaces of the form z = f(x, y) in 3-D perspective | ||

Numerical integration utility and grapher | Computes and graphs left and right Riemann sums, trapezoid and Simpson's rule sums. Also computes and graphs definite integrals numerically to the accuracy you specify. | ||

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Regression tools | |||

Simple regression utility | Gives the equation and graph of the line or exponential curve through two points, and also the best-fit (regression) line, polynomial and exponential curve using up to 16 data points (10 digit accuracy). | ||

Multiple regression utility | Gives you the best-fit (regression) linear function of up to 4 independent variables and up to 16 data points. (10 digit accuracy) | ||

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Matrix and linear algebra tools | |||

Pivot and Gauss-Jordan tool Updated Oct 2017 | Does row operations, pivoting, and complete Gauss Jordan row reduction for use in solving systems of linear equations and the simplex method. Works in fraction, integer, and decimal mode. | ||

Excel pivot and Gauss-Jordan tool | Downloadable Excel spreadsheet version of the above utility. Also works in fraction, integer, and decimal mode. | ||

Matrix algebra tool | Does symbolic computations with matrices. Check your matrix algebra homework! | ||

Linear programming grapher | Enter any linear programming problem or system of linear inequalities in two variables. Graphs and solves, showing the feasible region, corner points, and optimal solution. | ||

Simplex method tool Updated Apr 2020 | Just type in any linear programming problem and press "Solve." Check your simplex method homework in a snap! | ||

Diet problem solver | Choose your foods you like, choose your objective and constraints, and press "Solve." | ||

Markov system simulation | Enter your own 4 × 4 (or smaller) transition probability matrix and watch the system move from state to state. | ||

Markov system computation utility | Calculates powers of the transition matrix and its action on a distribution vector. | ||

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Calculus tools | |||

Numerical integration utility and grapher | Computes and graphs left and right Riemann sums, trapezoid and Simpson's rule sums. Also computes and graphs definite integrals numerically to the accuracy you specify. | ||

Excel first and second derivative graphing utility | Downloadable Excel spreadsheet that automatically graphs any function you enter as well as its first and second derivatives. [Note: Macros must be enabled in Excel.] | ||

Excel Riemann sum grapher | A downloadable Excel spreadsheet that computes and graphs left Riemann sums. [Note: Macros must be enabled in Excel.] | ||

Two dimensional differential equation solver and grapher | Numerically solves and graphs two dimensional systems of first order differential equations (or single second order differential equations). | ||

David Scherfgen's derivative calculator | |||

David Scherfgen's integral calculator | |||

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Probability and statistics tools | |||

Pop-up factorials, permutations and combinations calculator | This handy pop-up window allows you to compute factorials, permutations, and combinations. | ||

Histogram utility | Gives you the probability distribution and histogram for statistical data. | ||

Binomial distribution utility | Gives you the probability distribution and graph for binomial variables. | ||

Normal distribution utility | Computes areas under the normal curve to 10 digit accuracy. | ||

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Math of finance tools | |||

Time value of money utility | A utility that computes payments, present and future value, etc. for mortgages and general annuities. | ||

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Miscellaneous tools | |||

Formula practice pop-up | This pop-up window shows you the mathematical equivalent of the technology formula you enter. Handy to check whether you have your parentheses in the right places! | ||

Normal distribution table | |||

Pivot program for graphing calculator (TI-82/83/84/85/86) | |||

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