Type your notes in your browser and send them to your TI-84 Evo over USB with a free notes tool. Headings show up in blue, and a note can run 100 screens. …

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On the TI-84 Evo, the seq command lists an arithmetic sequence from its nth-term formula, and finds any single term you need. Here's the flow. …

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The TI-84 Evo has a built-in System Solver app. Type your equations, press SOLVE, and it gives you the value of every variable, from two up to ten. …

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Multiply matrices on the TI-84 Evo: type them with the quick matrix maker, or store them as [A] and [B] in the matrix editor. …

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The TI-84 Evo has nPr and nCr commands in the PROB tab of the MATH menu. Here's how to enter permutations and combinations, plus a keyboard shortcut. …

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The TI-84 Evo errors on square roots of negative numbers until you switch it into a+bi mode. Here's the switch, plus how to type i and do complex math. …

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Save a function in the Y= editor, then call it by name from the home screen to evaluate it at any value you want. …

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The square root is the blue label above the x² key. Press 2nd, then x² to enter one. For cube roots and any nth root, use items 4 and 5 in the MATH menu. …

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The TI-84 Evo Finance app's TVM Solver finds a loan payment, future value, or interest rate. Type the values you know, then solve for the one you don't. …

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Use the sin, cos, and tan keys on the TI-84 Evo to evaluate trig functions in degree or radian mode, plus how to find angles with inverse (arc) trig. …

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There is no public jailbreak for the TI-84 Evo yet, and you don't need one. The Evo runs Python games right out of the box. …

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Graph sine, cosine, and tangent on the TI-84 Evo. Type them from the trig keys, use ZTrig for a clean view, and match the window to your angle mode. …

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On the TI-84 Evo, the factorial command lives in the PROB tab of the MATH menu, or one alpha-window shortcut away. Here's how to use it. …

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Use the TI-84 Evo's built-in Inequality Graphing app to shade each inequality, see exactly where a system overlaps, and mark the corner of the region. …

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Do linear regression on the TI-84 Evo: enter paired data in L1 and L2, run LinReg(ax+b) from STAT CALC, and read the slope, intercept, r, and r-squared. …

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Plot a set of points on the TI-84 Evo: enter your x and y values in the STAT list editor, turn on a scatter plot, and frame them with ZoomStat. …

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The TI-84 Evo has a Polynomial Root Finder app built in. Type the coefficients, press SOLVE, and get exact roots for quadratics, cubics and beyond. …

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A full memory reset wipes your TI-84 Evo's built-in apps. Reinstalling the operating system with TI's browser tool brings them all back in two minutes. …

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The TI-84 Evo has an EE key for entering scientific notation, and a SCIENTIFIC display mode that returns every answer that way. Here's how to use both. …

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If your TI-84 Evo graph looks zoomed wrong, off-center, or blank, press zoom and pick 6:ZStandard to reset the window to a standard view. …

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Graph absolute value functions on the TI-84 Evo: grab abs( from the MATH NUM menu, type your function inside the bars, and graph the V. …

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Find the x- and y-intercepts of a graph on the TI-84 Evo: the CALCULATE menu reads the y-intercept with value and finds each x-intercept with zero. …

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Do logarithms on the TI-84 Evo: the log key has a built-in base slot for log base 2, base 5, or any base, plus the common log and the natural log. …

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Make a table of values on the TI-84 Evo: type a function, press 2nd then graph, then set the start, the step size, or type your own X values. …

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Graphing on the TI-84 Evo takes three steps: open the Y= editor, type your function, and press graph. Plus trace, zoom, and graphing several at once. …

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The sto key saves a number into a letter you can reuse. Here's how to store a value, recall it, and use variables in later calculations. …

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The TI-84 Evo starts in radian mode. Here's how to check your angle mode, switch to degrees and back, and do one calculation in degrees without switching. …

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If Python App vanished from your TI-84 Evo's prgm menu after a memory reset, you can get it back in about two minutes with TI's free browser tool. No software to install. …

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The TI-84 Evo has a dedicated fraction key, so you can type fractions the way they look in your textbook and flip any answer between fraction and decimal form with one press. …

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How to install games on the TI-84 Evo: a one-click install straight from your browser. Works on Chromebooks, with no software to install. …

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