Graph84 for TI 84 Calculator

CALCULATE84 PLUS IS NOW GRAPH84 PLUS New name, same calculator. Your history, variables and settings stay exactly as they are. This is the biggest update since the app launched, so here is everything that is new. APPS • Press APPS for Geometry, Periodic Table, Finance, Polynomial Root Finder and Simultaneous Equation Solver, Probability Simulation, Science Tools with a unit converter, Transform, Conics and Inequality graphing GRAPHING • Four graph modes: function, parametric, polar and sequence, with TIME, WEB and phase plots • Zeros, maxima, minima and intersections snap under your cursor. Turn it on under FORMAT ▸ DETECT • Scroll the graph with one finger, drag a curve to trace it, draw a tangent at any point • The complete DRAW menu: text, pen, points, circles and shading, ten stored pictures, or a photo behind your graph • The full ZOOM menu: Zoom Box, Zoom Fit, Zoom Default and more, plus quick zoom with + and − • Manual-Fit and QuickPlot & Fit-EQ put a regression right on the graph PROGRAMS • Press 2nd clear to write and run TI-BASIC programs • Built-in editor with a toolbar for →, Lbl, Goto, If, For, Disp, Input and more • Import .8xp files from the Files app; programs share variables, lists and Ans with the home screen MATH • Math templates palette on alpha + X,T,θ,n: fraction, absolute value, piecewise, integral, derivative, sum, nCr, nPr and matrix • Matrices fill in right on the home screen • Numeric Solver, piecewise functions, three new regression models, distribution shading and gradian mode • Statistics wizards with a CALCULATE button, conics and lines with equation templates • nDeriv( is exact and fnInt( adapts to the function • Tap a result to flip between fraction and decimal; alpha + enter shows the decimal right away A NEW LOOK • The display can be light or dark: MODE ▸ DISPLAY • A new math font made for the display, with stacked fractions and clean radicals • Status line above the display: tap NORMAL FLOAT RADIAN to change a setting on the spot • Redesigned menus, and errors appear right under your entry with the spot marked • Division shows as a slash: 3/4 instead of 3÷4 FOR SCHOOL • Export your history as a text file or PDF: 2nd ▸ MEM ▸ Export Entries, or Share in the side menu • On iPad, MODE ▸ KEY PRESSES shows every key you press as keycaps under the display, so a class can follow along FIXES • Stability improvements throughout