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Tool to compute a cube root. The cube root for a number N, is the number that, multiplied by itself than again by itself, equals N.

Answers to Questions

How to calculate a cube root?

The programma allows positive of negative numbers (complexe roots) and answers an exact value or an approximate one (the precision can be ajusted by defining the precision : a minimum number of significative digits)

What is a cubic number?

A cubic number is the cube of an integer.

2 is an integer, 2^3 = 2*2*2 = 8 then 8 is a square number.

If the cube root of a number x is an integer, then x is a cubic number.

The first perfect cubes are :

1^3

1

2^3

8

3^3

27

4^3

64

5^3

125

6^3

216

7^3

343

8^3

512

9^3

729

10^3

1000

What does cbrt mean?

In some software, cbrt stands for cube root.

cbrt(8)=2

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Source code

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