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| 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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