SchoolStat vs PocketCAS

Simple easy to use statistics program for students of high schools, colleges and universities. Adapted from SchoolStat for Macintosh released originally in 1989. Aims to facilitate teaching of introductory statistics and to be a useful tool for statistical computations anywhere an iPhone can go. - Enter data into a fully functional spreadsheet with thousands of rows and columns, name the columns and perform statistical computations with results stored in the log panel. - Spreadsheet includes functions for trigonometry, table & cell access, maths, statistics, strings, logical, date, time, financial and matrix manipulations (>180 in total). Resize cells, zoom and swipe to scroll, file saving/opening and emailing. Series and sorting functions. Quick sum, average, min, max. Intuitive cell editing and selection. - Spreadsheet also supports cut/copy/paste and shake to undo. - One, two or multiple sample statistics available for named columns including descriptive, confidence intervals, correlation, linear regression, sign test, Wilcoxon paired test, Paired t-test, Mann-Whitney U test, Student's independent t-test, Kolmogorov-Smirnov test, One-way ANOVA, Kruskal-Wallis test. - Odds ratio and sensitivity/specificity testing. - Create graphical displays using box plots, pie chart, stem & leaf displays, histograms, linear or scatter plots. - Visualise "active" probability tables for multiple distributions to aid understanding of parameter changes for beta, binomial, Cauchy, chi square, exponential, F-, gamma, geometric, hypergeometric, logistic, lognormal, normal, Poisson, t-, Weibull distributions. - Static tables available for chi-square, F-, Inverse normal and normal, Kruskal Wallis, Mann-Whitney, T- and Wilcoxon distributions. - Log window supports annotation, text cut/copy/paste, file saving/opening/emailing, addition of time/date stamp and is automatically saved. - Graph window creates pdf resolution independent files, which can be copied, and file saving/opening/emailing. - Full help descriptions for all functions and sample spreadsheet files accompanying quick tutorial.

PocketCAS is a graphing calculator for iPhone and iPad. It graphs your functions, finds derivatives and works with exact fractions and roots. Everything runs on your device, so it works without internet or an account. An in-app purchase unlocks PocketCAS Pro, with steps, integrals and the solver. Graphs - 2D plots of functions, implicit equations, polar and parametric curves and vector fields, two functions per plot. PocketCAS marks zeros, extrema and intersections. In full screen, tap a mark to read its coordinates. - 3D surfaces with soft light and shading. Drag to turn them, pinch to zoom. Derivatives - Under each function, a suggestion shows its derivative, already worked out, and a small plot sits beside the result. Tap one to add it to your document. - Exact derivatives of products, quotients, roots and chains, written the way your textbook writes them. Exact results - Arithmetic with exact fractions and roots, trigonometric, exponential and logarithmic functions. - Matrices: determinants, inverses and products. - Your own functions, with conditions and recursion. - Common units and physical constants. Reads like your textbook - Results look the way they do in a textbook: fractions, roots, powers and matrices. - A math keyboard with every function in reach, and a hint shows what goes between the brackets. Made for daily work - Documents keep your calculations and plots together, and iCloud syncs them between your devices. - Export and print plots, entries or whole documents (with a watermark). - Help built in: the function reference explains every function with examples, and tutorials get you started. Unlock PocketCAS Pro One purchase in the app unlocks everything in PocketCAS Pro, without a subscription: calculation steps that name the rule behind each step, integrals, limits, series and sums, equation and system solving, factoring and simplifying, eigenvalues, differential equations, scripts, plots with more than two functions, imports of documents and CSV data, larger matrices in the editor, exports without a watermark, and suggestions with zeros, extrema and integrals. Family Sharing is included, and Restore Purchases is in the main menu. Until you unlock it, the function reference marks the functions of Pro with a PRO badge. PocketCAS Pro is also sold as its own app; you need only one. Questions or ideas? Write to us at https://pocketcas.com/support. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pocketcas.com/privacy.php