Taculator 84 Graphing Calc

Graphing Calculator Apps

In-app purchases

About this app

Taculator 84 is a graphing calculator and scientific calculator for high school and college math, intended for use with TI-84 Plus, CE, Evo and TI-83 on Android phones, tablets, and Chromebooks. Work with functions, tables, lists, statistics, and matrices using the commands and menus students and teachers use in class.

Math and entry
• Scientific calculator with every basic and advanced math function.
• Textbook-style fractions and mixed numbers, with exact answers as n/d or Un/d.
• Scrollable calculation history: tap any previous entry to copy or reuse it.
• Complex numbers (rectangular and polar), probability (nPr, nCr, factorial, random), and angle modes (degree, radian, gradian, DMS).
• Piecewise functions, list arithmetic, seq(, ΔList(, and augment(.

Graphs and tables to use with TI 84 Evo
• Four graphing modes: Function, Parametric, Polar, and Sequence, with trace, tables, Calc, and zoom in every mode.
• Smart trace snaps to zeros, maxima, minima, intersections, and asymptotes.
• Calc menu: intersection, zero, minimum, maximum, integral, and dy/dx derivative.
• Zoom tools (ZBox, ZSquare, ZTrig, ZoomFit) and drawing tools (text, pen, points, tangents, circles, shading).
• Split-screen view with graph and table side by side, plus statistical plots (histogram, box plot, scatter plot, xy-line).

Lists, statistics and distributions for TI 84 users
• Stat list editor with 1-variable and 2-variable statistics and input wizards.
• List math: min, max, mean, median, sum, product, standard deviation, and variance.
• Regressions: LinReg (ax+b), LinReg (a+bx), QuadReg, CubicReg, QuartReg, LnReg, ExpReg, PwrReg, Logistic, and SinReg.
• Hypothesis tests and intervals: Z-Test, T-Test, 2-Sample Z and T tests, 1- and 2-PropZTest, Chi-square tests, ANOVA, and Z and T intervals.
• Distributions: Normal, Student-t, Chi-square, F, Poisson, Binomial, and Geometric (pdf, cdf, invT) shaded on the graph.

Matrices, built-in apps and programs
• Matrix calculator: store matrices as [A], [B], [C] and compute transpose, determinant, inverse, ref, rref, row operations, and identity.
• Finance app with TVM solver, NPV, IRR, and amortization.
• Polynomial Root Finder, Simultaneous Equation Solver, Numeric Solver, Conics, Transformation, and Inequality Graphing.
• Write and run calculator TI 84 Basic programs, browse the searchable command catalog with syntax help at the cursor, and use physical keyboards on Chromebooks and tablets.

Made for students and teachers
• Pre-Algebra, Algebra 1 and 2, Precalculus, Calculus, and Statistics.
• SAT, ACT, AP Calculus, and AP Statistics exam prep.
• Students coming from a TI 84 or TI84 Plus Evo in class, and their teachers.

Support: [e-mail]

TI-84 Plus CE and TI-83 are registered trademarks of Texas Instruments. Taculator is an independent app, not affiliated with or endorsed by Texas Instruments.

Terms of Service: https://taculator.com/terms/

Ratings and reviews

confusing interface + just use desmos, its free.

Graphing doesn't work. I entered 3 equations, hit the graph button, and after a 3 second delay, a blank graph appears. I tried very simple equations (y = 2x, y = -x, etc), made sure the minimum and maximum axis values were appropriate (-10 to 10 on both axes), and it won't plot the graphs. I'll try a different app.

I like it! Vibrate on keypress would be a nice addition. I also have some small issues where selecting a previous result shows an empty pop menu when in darkmode (switching darkmode also shows the let's get started menu again). The up arrow also does not select the previous result.

What’s new

Export your history, smarter links and a smoother graph.
• Export your history as a text file or PDF: 2nd ▸ MEM ▸ Export Entries, or Share in the side menu
• Share Y=, a matrix or a list as a link; it opens right where it belongs on the other phone
• Shrink the graph even under the status bar; the keypad returns when you leave the graph
• Trace draws faster, and the back gesture closes screens first, then the app
• Fixes for FreqList errors and purchases