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copy any previous calculation.\n• Complex numbers support\n• Probability: nPr, nCr, factorial, random numbers.\n• Enter fractions easily; tap any result to flip fraction and decimal.\n• Piecewise functions, sequences, list commands like seq(, ΔList(, augment(.\n• Degree, radian and gradian angle modes, DMS format.\n• Error messages point at the exact spot in your input.\n\n◉ Graphing Functions\n• Four graphing modes: Function, Parametric, Polar and Sequence (u, v, w with TIME and WEB plots); trace, tables, CALC and zoom work in every mode.\n• Smart trace snaps to zeros, maxima, minima, intersections and asymptotes.\n• Calculate intersection, zero, minimum, maximum, integral, and derivative.\n• Full ZOOM menu: ZBox, ZSquare, ZTrig, ZoomFit, zoom factors and zoom memory.\n• Draw on your graph: text, pen, points, tangents, circles and shading in color.\n• Store and recall pictures, or put a photo behind your graph.\n• Graph statistical plots like histogram, box plot, scatter plot, xy-line plot.\n• Full-screen mode, pinch to zoom, full window and format settings.\n\n◉ List, Statistics, and Distribution\n• Stat list editor with 1- and 2-Variable statistics.\n• Guided input wizards for every test, interval and distribution.\n• List math: min, max, mean, median, sum, product, standard deviation, variance.\n• Find best-fit regressions: LinReg (ax+b), LinReg (a+bx), QuadReg, CubicReg, QuartReg, LnReg, ExpReg, PwrReg, Logistic, SinReg, PropReg, RecipReg, eBASEReg — with r and r2 diagnostics.\n• Manual-Fit a line by eye, or QuickPlot points and fit a model right on the graph.\n• Statistical tests: Z-Test, T-Test, 2-Sample Z- and T-Tests, 1- and 2-PropZTest, plus Z-, T- and proportion intervals.\n• Distributions: Normal, T, χ2, F, Poisson, Binomial, Geometric (each pdf and cdf), invT — and shade them right on the graph.\n\n◉ Command Catalog & Syntax Help\n• Integrated Catalog & Help: syntax, examples and error messages for every command.\n• Type a command and see the right syntax next to the cursor.\n\n◉ Built-in Apps\n• Geometry: points, lines, circles and polygons — measure, transform, animate.\n• Polynomial Root Finder & Simultaneous Equation Solver.\n• Finance: Time-Value-of-Money solver, NPV, IRR, amortization.\n• Probability Simulation: toss coins, roll dice, spin spinners, draw cards.\n• Science Tools: sig-fig calculator, unit converter, data/graphs wizard, vector calculator.\n• Conics & Lines: equation templates for lines (even X=C), circles, parabolas, ellipses and hyperbolas, with SOLVE for center, foci, vertices, directrix.\n• Transformation Graphing, Inequality Graphing, Periodic Table.\n• Numeric Solver: solve any equation for any variable.\n\n◉ Matrix Calculator\n• Store matrices and reuse them as [A], [B], [C], ...\n• Matrix arithmetic: addition, multiplication, scalar products, powers.\n• Transpose, determinant, inverse, dimension, ref/rref, identity matrix, cumulative sum.\n\nSUPPORT\nContact us at contact@taculator.com\n\n---\nTaculator Pro Membership\n• Unlock advanced calculations and functions with a monthly, yearly, or lifetime subscription.\n• Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period.\n• Manage subscriptions in Account Settings.\n\nTerms of Service:\nhttps://taculator.com/terms/\n\nPrivacy Policy:\nhttps://taculator.com/privacy/","facts":{"developer_id":1449451480,"developer_url":null,"first_released":"2019-05-08T07:27:39Z","support_url":"https://www.taculator.com/","privacy_url":"https://www.taculator.com/privacy-policy.html","website_url":null,"app_version":"2.2.1","release_notes":"EASIER TO READ\n• Division now shows as a slash: 3/4 instead of 3÷4. You see it in the entry line, the history, Y=, tables, lists, matrices and programs, clearly apart from the plus sign\n• The fraction template keeps its stacked form, and the ÷ key stays where it is\n\nSTATISTICS\n• QuadReg, CubicReg and QuartReg stay precise when your x values are far from zero, for example years such as 2015 to 2026\n\nSMALL THINGS\n• With the status line on, tap the graph mode (PAR, POL or SEQ) to change it right there\n• Stability improvements throughout","rating_current_version":4.51464,"rating_count_current_version":7644,"star_counts":[532,118,282,660,6047],"genres":["Education","Utilities"],"languages":["EN"],"content_advisories":null,"device_families":["mac","iphone","ipad","ipod"],"chart":null},"freshness":{"apple_read_at":"2026-10-20T08:46:11.607Z","catalog_read_at":"2026-10-17T08:52:13.403Z","reviews_checked_at":null,"summary_written_at":"2026-10-18T22:52:11.552Z","placed_at":"2026-10-16T15:21:23.918Z","scored_at":"2026-10-21T17:15:13.047Z"},"editorial":{"one_liner":"Graphing and scientific calculator app for high school and college math, with statistics tools and built-in apps.","what_is":"Taculator 84 Graphing Calc is an Education app whose subtitle describes it as a graphing calculator for the TI-84. It offers scientific functions, four graphing modes, list and statistics tools with regressions and distributions, a command catalog, and built-in apps for geometry, finance and probability simulation. The App Store lists it as free to download with in-app purchases.","good_for":["High school or college math from pre-algebra through calculus","Graphing functions with trace, zoom and intersection tools","Statistics work with regressions, statistical tests and distributions"],"pricing":"Taculator 84 Graphing Calc is free to download, with in-app purchases on the App Store.","faq":[{"q":"Is the app free?","a":"It is free to download. It also lists in-app purchases, and their prices are not stated on the App Store."},{"q":"Which math levels does it cover?","a":"The description says it covers Pre-Algebra, Algebra 1 and 2, Pre-Calculus, Calculus and Statistics, aimed at high school and college students."},{"q":"Does it run on iPhone and iPad?","a":"The description refers to using the calculation power of your iPhone or iPad. 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