Products (92)
| Title | Company |
|---|---|
| 10 Programs for the ZX81 Examples of input/output and instructions. 6 on statistics: student, paired observations, correlation, linear regression, analysis of variance, and chi squared.... | Verlin K. Cross |
| 3 Factor ANOVA with Interaction Evaluates ANOVA where a single subject is exposed to one level for each factor. Up to 5 levels of treatment... | Ako Tech |
| Advanced Math Allows you to use a complex multiplication of more than 2 digits. | T-S Systems |
| Advanced Math | Foote Software |
| Aircraft Performance Program Charts climb rate vs airspeed to make performance comparisons of aircraft under varying conditions of weight, power, and altitude. Booklet... | Tesseract Software Development |
| Algebra Solver 16K. | Creitech |
| Anypoint Plotter Crunches any data to allow the best possible graph by readjusting the vertical coordinate to each set of data. A... | ZX-Panding, Ltd. |
| Areas Two programs to approximate the area under a curve to either the x or y axis using Simpson’s rule and... | Stephen Zachev |
| Arithmetic and Geometric Progressions Computes the value and sum of a specified number of terms with a common difference or ratio, starting with the... | Stephen Zachev |
| Astronomy Compute positions of the sun, moon and planets for any date. Find dates and times of moon phases, solar and... | Imre Auersbacher |
| Atan 2K | A.T&A Compu-U-Ware |
| Calculus Solver 16K. | Creitech |
| CAM MASTER CAD software to design circular cams and generate CNC code to a vertical mill controller. | Hale Software/EMSoft |
| COMPU-STAT General statistics program. Calculates most descriptive statistics, graphs frequency distribution. Manual gives step-by-step explanations. 16K. | Computercraft |
| Computer Navigation Seven programs for computer navigation. Great circle sailing. rhumb-line sailing, dead reckoning, latitude by noon sight, longitude by time sight,... | Celestial Software |
| Conversions/Functions Converts decimal degrees to degrees-minutes-seconds plus radians, grads. Gives six trigonometry functions for each input. Answers in one second. | Frank Lockhart |
| Cryptographics Programs Five 2K programs for secure communications. Illustrates degrees of message security, including unbreakable random codes. | Crypt |
| Cubic/quadratic Solution Solution to the cubic and quadratic equation for real coefficients. | Igor Alexeff |
| Differential Equation Solver 16K. | Creitech |
| Distacalc Calculates great circle distance and heading from entered latitude and longitude data. File of 250 world cities is updated each... | RCO Technical |
| Equation Solver Displays each step in the solution of mathematical equations. Works on any level of mathematical proficiency. Also solves unknowns. | Robert Martin |
| Fast Fourier Transform 16K. | Z-Tron International |
| Frame Engineering software for frame analysis. Intended for consulting engineers, civil/structural engineers, mechanical engineers and engineering students. | Okoloko Engineering Software |
| Functional Analysis Given any function defined in a closed form, the program finds its maximums, minimums, and zeros over a given range... | UAS |
| Graphic Calculator Turn your computer into a full graphics calculator able to display equation with result. 1K. | ZxCo |
| Hamilton Display Generates and displays Hamilton paths on a forgetful functional representation of a 4-dimensional cube. 16K. | EZRA GROUP II |
| Hamilton Path Generator Generates paths along edges through each corner once on hypercubes. Listing, 2K. | EZRA GROUP II |
| Hyperbolic Spiral Listing. 1K. | EZRA GROUP II |
| Hypercycloids Listing. 1K. | EZRA GROUP II |
| Intermediate Math Pack Compute primes, GCD, LCM. any base conversion, roots of functions, triangle solutions, linear regression, simultaneous equations, determinants, vector operations. 2K. | Imre Auersbacher |
| LCM & HCF, Prime factors, Statistics, Bar-chart plotter Math programs for the 1K ZX80. | Artic Computing |
| Lemniscate of Bernoulli Listing. 1K. | EZRA GROUP II |
| Limacons Listing. 1K. | EZRA GROUP II |
| Linear Programming 1K. | EZRA GROUP II |
| Linear Regression 1K. | EZRA GROUP II |
| Linearsystems3.0 Solves set of linear system equations of up to twenty real, or ten complex-valued unknowns. Uses Gaussian elimination with partial... | Arizoftx |
| Linreg4.0 Accepts up to 99 pairs of data points and computes parameters of straight line having best Least-Mean-Square fit to data.... | Arizoftx |
| Lissajous Figures Listing. 1K. | EZRA GROUP II |
| Magic Cube Generator Generates four by four magic cubes. Listing, 16K. | EZRA GROUP II |
| Math #1 Metric: 21 menu selectable conversions; Bascon: computer math base conversion. | S & S Company, The |
| Math and Electronics 6 programs. Resonate Circuits: Series and parallel calculations. Geometry: Areas, volumes, perimeters of 22 shapes. Graphic Trig: Plots X-Y data,... | Soft-Way |
| Math Pak Math routines and fit, variance analyzer, statistics and RPN calculator. 16K. | ZETA Software |
| Math Routines and FIT General purpose mathematics program for calculating factorials, permutations, and combinations, for solving quadratic and cubic interpolations, and for plotting fitted... | ZETA Software |
| Mathematics of Higher Order, Combo IV Arithmetic progression; area of common figures; complex variables and operations: exponents; derivatives; logarithms; factorials; etc. | JPR Software, Inc. |
| Mathstat Pac Four programs. Statistics: computes mean, variance and standard deviation. Linear Regression: computes regression coefficients and displays equation. Vector Math: adds... | Simplex Software |
| MATMAN Performs all standard matrix functions including input editing. | Hybridion |
| Matrix Math 16K. | Creitech |
| MATSOL Solve any number of simultaneous equations; uses Gaussian elimination with partial pivoting for a fast solution. | J. B. Thomison |
| Mega-Stat Perform sophisticates statistical analyses on business and personal data. Accepts data via keyboard or tape. Plots in graphic and digital... | Datacon Corporation |
| MOPSY Matrix Operations Programming System. Applications to solve systems of equations, polynomial interpolations, statistical analysis, heat transfer, electrical circuit analysis, animal... | MOPSY |
| Multiple Linear Regression Computes correlation matrix, its inverse, regression coefficients, ANOVA, multiple R and coefficient of determination for up to 15 independent variables... | Ako Tech |
| Multiple Regression Listing. 16K. | Integrated Data Systems |
| Multiple Regression Analysis Max or min up to 48×48 tableau. Tableau must be in standard form. 16K. | P.A.L. (Programmers at Large) |
| MXP Stores and manipulates complex formulas without programming. Solves equations, function plotting. User-definable functions, engineering (MXP-E), physics (MXP-P), graphs (MXP-O) and... | Syber, Inc. |
| Numerint4.0 An adaptive quadrature numerical integration routine based upon a Newton-Cotes eight panel formula. Sub-interval sizes automatically adjust to meet accuracy... | Arizoftx |
| Oblique Trigonometry Solves all non-right angle trigonometry. | Frank Lockhart |
| Physics Solver 16K. | Creitech |
| Plane Frame Structural analysis program to determine movement and internal forces generated by external loading on a two dimensional frame. Based on... | J. B. Thomison |
| Plane Frame Modeling for engineers. An excellent tool for the professional engineer or an example of state-of-the-art matrix structural analysis for students.... | ZETA Software |
| Prime Numbers Generates primes from 3 to 10 million. Checks numbers for primes. Listing. 1K. | EZRA GROUP II |
| Relativity Graphically demonstrates effects of relativistic velocities on length of a spacecraft plus time dilation effects. Demonstrates the “twin paradox” on... | Robert C. Moler |
| Rhodonea (Rose) Curve Listing. 1K. | EZRA GROUP II |
| RPN Calculator Scientific calculator emulation using reverse polish notation. Features include: 50 storage registers, a visible stack, statistical functions, and a key... | ZETA Software |
| Sci-Pak A full range of math functions. Graphing, curve fitting, simultaneous equations, polar coordinates, more. | ROMPAK |
| SIFT I Statistical Interactive system for the Timex/Sinclair 1000 and ZX81 computers, Vol I. Sixteen 2K statistical routines such as: Linear and... | Compucraft |
| SIFT II Statistical Interactive-Analysis for Timex Computers, Vol. II. Twenty statistical routines: plots, regressions, analyses of variance, sample tests, correlation analyses, and... | Compucraft |
| Simplex Algorithm Gives coefficients for up to 10 variables (up to 100 observations per variable). Also gives F statistic for dependent variable.... | P.A.L. (Programmers at Large) |
| Small User’s Math (SUM) Compendium of numerical programs for the small system user. Equations to handle first and second order differential equations, matrix eigenvalue/vector... | Ken Lewis |
| Speed of Sound Calculator Gives speed simultaneously in ft/sec. MPH, knots with only a user input of the ambient air temperature at the desired... | Robert J. Sabbia |
| Spiral of Archimedes Listing, 1K. | EZRA GROUP II |
| Stat Master Provides most useful descriptive operations on your data files. Variances, co-variance, standard deviation, standard error, chi-square, hypothesis testing, confidence intervals,... | SyncMaster |
| Statistical Correlation Multiple regression program. Accepts up to 10 variables, computes, and prints to standard printer. Min, max, mean, SD, simple correlation... | Woods End Laboratory |
| Statistical Graph Generator Generate graphs for budgets, investments, etc. Includes self-centering titles and dates, automatic calculation of scaler. Supports both TS 2040 and... | Wizard Works, The |
| Statistical Pac Four statistics programs. Chi-square (goodness of fit) calculations, analysis of a data set including hypothesis testing and confidence intervals, comparison... | Kimtech |
| Statistical Programs Regression, ANOVA, Complete Block, Randomized Block, and Latin Squares. | Ako Tech |
| Statistics Statistical analysis and data display. 1 variable with histogram or 2-or-more variables with plot. Results include: sum, variance, standard deviation,... | ZETA Software |
| Statistics 1K. | Bridge Software |
| Statistics Three statistics programs. Programs compute current mean and standard deviation, regression, and trend. 1K. | Hewson Consultants |
| Statistics Pack Force, moment, couple, friction, vectors, US-SI conversions. | MCS Software |
| Statistics Package Four programs with error-correcting facilities to compute statistics. Can compute mean, standard deviation, variance, correlation coefficient, regression, equation, confidence interval... | Computer Software Associates |
| Statistics Programs Book $12.95, 6 cassettes $17.95 | Intercomputer, Inc. |
| Super Fn Plot Plots any function in the form y=f(x); draws it to the correct vertical scale on screen. Plots are white on... | JRC Software |
| Super-Stats Statistical tools. Includes mean, standard deviations, Pearson R coeffecient of correlation, Chi square, etc. 16K. | Kinetronics Corp |
| Temperature Conversion 1K. | Italian Connection, The |
| The Calculus Sophisticated programs for numerical integration, differentiation, 1, 2, 3rd derivatives of function, 1st & 2nd differential equations by Runge-Kutta and... | Imre Auersbacher |
| The Matrix Package Four separate topics of matrix multiplication, addition, subtraction, and transformation of user-defined matrices. 2K. | Stephen Zachev |
| Theile Cabinets Complete program for designing/testing bass and subwoofer speaker cabinets. Includes simplified measurement procedures and 2 unique alignments for very small... | Mallard Software |
| Trigonometry Solves right triangle problems fast. | Frank Lockhart |
| Variance Analyzer A data analysis program for examining 1- or 2- way AOV and 2-way AOCOV. Includes: degrees of freedom, sums of... | ZETA Software |
| Vectors and Hyperbolics Functions, Combo III Hyperbolic functions; dot and cross product of vectors; vector addition and subtraction; etc. | JPR Software, Inc. |
| World’s Most Magic Square 8×8 and 16×16 magic squares. Listing. 1K. | EZRA GROUP II |
| ZX Forecasting Forecasting software with a number of methods. Includes moving averages, weighted moving averages, linear exponential smoothing, quadratic exponential smoothing, trend... | Applied Software Development Association, Inc. |