多項式計算機

共有リンク

はじめに

Polynomial Calculator — Evaluate a polynomial expression at a given x value. Enter Coefficients (highest degree first, comma separated), x to get an instant, accurate result.

計算式

Evaluates a polynomial at a given x using Horner's method: coefficients (highest degree first) are combined as result = result×x + coefficient, working left to right.

ステップごとの説明

Enter the Coefficients (highest degree first, comma separated).
Enter the x.
Click Calculate to see your result instantly.

実例

Example: With Coefficients (highest degree first, comma separated) = 1, -3, 2, x = 2, the Polynomial Calculator gives Result: 0.

よくある質問

In what order do I enter the coefficients?

Highest degree term first, down to the constant term.

What is Horner's method?

An efficient way to evaluate a polynomial that avoids separately computing each power of x.

What inputs does the Polynomial Calculator need?

You'll need to provide: Coefficients (highest degree first, comma separated), x. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.

How accurate is the Polynomial Calculator?

The Polynomial Calculator applies the formula exactly as calculated — Evaluates a polynomial at a given x using Horner's method: coefficients (highest degree first) are combined as result = result×x + coefficient, working left to right. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Is the Polynomial Calculator free to use?

Yes, the Polynomial Calculator is completely free, requires no signup, and runs instantly in your browser.