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Function Value Table

Enter a function of x, an x interval and a step size Δx. The calculator returns the table of values f(x) at every x = xMin, xMin + Δx, xMin + 2Δx, … up to xMax, with non-defined entries clearly marked.

Function Value Table

Tabulate f(x) at evenly spaced x values — useful for sketching by hand.

Try:
Answer13 values tabulated
  1. Functionf(x) = x^2
  2. Rangex ∈ [-3, 3], step 0.5
  3. x = -3f(-3) = 9
  4. x = -2.5f(-2.5) = 6.25
  5. x = -2f(-2) = 4
  6. x = -1.5f(-1.5) = 2.25
  7. x = -1f(-1) = 1
  8. x = -0.5f(-0.5) = 0.25
  9. x = 0f(0) = 0
  10. x = 0.5f(0.5) = 0.25
  11. x = 1f(1) = 1
  12. x = 1.5f(1.5) = 2.25
  13. x = 2f(2) = 4
  14. x = 2.5f(2.5) = 6.25
  15. x = 3f(3) = 9
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Frequently asked questions

What is a function table for?

It is the classic way to sketch a graph by hand: tabulate enough points and connect them. The calculator does the arithmetic so you can focus on the shape.

How is undefined output handled?

Whenever f(x) returns NaN or ±∞ — for instance at x = 0 in 1/x — the row is marked 'undefined' instead of giving a misleading number.

Is there a maximum number of rows?

The table is capped at 100 rows. For finer detail, narrow the interval or use the function grapher instead.

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