n乗根計算機

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はじめに

Root Calculator — Find the nth root of any number. Enter Number, Root degree to get an instant, accurate result.

計算式

nth root of n = n^(1/degree). For a negative number with an odd degree, the sign is preserved (real negative root); an even-degree root of a negative number is reported as not real.

ステップごとの説明

Enter the Number.
Enter the Root degree.
Click Calculate to see your result instantly.

実例

Example: With Number = 27, Root degree = 3, the Root Calculator gives Result: 3.

よくある質問

Can I take the root of a negative number?

Only for odd-degree roots (like cube roots); even-degree roots (like square roots) of a negative number have no real result.

What degree gives a square root?

Degree 2. Degree 3 gives a cube root, and so on for any higher degree.

What inputs does the Root Calculator need?

You'll need to provide: Number, Root degree. 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 Root Calculator?

The Root Calculator applies the formula exactly as calculated — nth root of n = n^(1/degree). For a negative number with an odd degree, the sign is preserved (real negative root); an even-degree root of a negative number is reported as not real. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Is the Root Calculator free to use?

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