Table Mode on the TI-30XS MultiView — Function Tables

One of the most underrated keys on the TI-30XS MultiView is the table key. It turns the calculator into a function-table machine: type in an expression like 2x² − 5 once, and the calculator evaluates it for as many x-values as you want — no retyping, no plugging in numbers by hand. If you've ever filled out an "x and y" table for homework, this feature does that job in seconds. You can try everything in this guide on the free online TI-30XS MultiView calculator as you read.

What table mode does

Table mode evaluates one function, written in terms of x, over and over. You get a two-column table on screen: x-values on the left, the function's output on the right. It's ideal for:

Filling in function tables on homework or the GED
Checking your algebra by comparing your hand-computed values against the calculator's
Spotting patterns — where a function hits zero, where it turns around, how fast it grows
Evaluating the same formula for many inputs (unit conversions, budgets, pay rates)

Setting up a table, step by step

Press the table key. The calculator shows a y= entry line.
Type your function using the x key wherever the variable appears — for example 2 x x² − 5 for y = 2x² − 5. (Functions can include up to one level of fractions.)
Press enter. The calculator now asks how you want the table built.
Set Start — the first x-value you want (press enter to accept).
Set Step — how much x increases between rows. Step can be positive or negative, but not zero.
Choose Auto or Ask-x (see below), then press enter to see your table.
Use ▲ and ▼ to scroll through rows. Press table again or clear to leave and start over.

Auto mode vs. Ask-x mode

Mode	What it does	Best for
Auto	Generates rows automatically from your Start and Step values (e.g., start at 0, count by 1)	Seeing overall behavior, filling a whole homework table, finding patterns
Ask-x	Waits for you to type each x-value yourself, then shows the output	Checking a few specific values, like f(3) or f(−2)

Auto is the "show me everything" mode; Ask-x is the "just answer my question" mode. Both are set up from the same menu, so switching takes seconds.

Worked example: find f(3) for f(x) = 2x² − 5

Press table.
At y=, press 2 x x² − 5, then enter.
Since we only need one value, choose Ask-x and press enter.
Type 3 and press enter.

The table shows x = 3 paired with 13, because 2(3²) − 5 = 18 − 5 = 13. Want f(4) too? Just type 4 enter and the next row appears: 27.

Now try the same function in Auto mode with Start = 0 and Step = 1. Scrolling the table, you'll see y-values of −5, −3, 3, 13, 27… — and you can watch the outputs grow faster and faster, which is exactly how a parabola behaves.

Using tables to check homework and find patterns

Here's a habit worth building: after you solve an algebra problem by hand, verify it in table mode. Solved 2x² − 5 = 13 and got x = 3? Put the function in the table and confirm that x = 3 really gives 13 (and notice x = −3 works too — tables are great at catching missed negative solutions). Simplified an expression? Enter the original and your simplified version one after the other and check that they produce the same outputs for several x-values. If the numbers match everywhere you test, your algebra almost certainly holds.

Tables also make patterns visible. Constant differences between rows mean a linear function; differences that change by a constant amount mean a quadratic. On tests like the GED, where you might be given a table and asked which equation matches, generating candidate tables on the calculator turns guesswork into verification. (More GED tactics in our GED calculator guide.)

The honest limitation: no graphs

The TI-30XS shows you a function as numbers, not as a picture. There's no graphing screen, so you can't visually see a parabola's shape, trace an intersection point, or shade a region. For most GED and everyday algebra work, the table is genuinely enough — but if your course or test requires actual graphing, that's a job for a graphing calculator like the TI-84 online calculator, which we also offer free in the browser.

For the TI-30XS's other power features, see the guides on fractions and statistics.

Practice right now

Open the free online TI-30XS MultiView calculator, press table, and build the f(x) = 2x² − 5 example both ways — Ask-x for a single value, then Auto starting at 0 with a step of 1. Once you've done it twice, you'll never fill in a function table by hand again.