In mathematics, raising a number to the power of 3 is called cubing. When we say 3 to the third power, it means multiplying 3 by itself three times: 3 x 3 x 3. The result of this operation is 27. The term "cube" comes from the shape of the result, which has three dimensions, just like a cube.
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Imagine a line 3 inches long. It has one dimension. Adding another dimension creates a square, 3 x 3. Adding a third dimension creates a cube, 3 x 3 x 3
This is related to the fact that a cube has three dimensions. Basically, the volume of a cube is calculated by raising the length of a side to the third power.
It refers to the fact that a cube is 3 dimensional whereas a square is only 2 dimensional
Because, to find the volume of a cube, you raise the length of the side to the third power: if the side of a cube is 2, the volume is 2^3 or 8.
"cbrt" is acceptable abbreviation of cube root, although it is much easier to write "^(1/3)", which is the one-third power, or the cube root. They are mathematically identical.
a cubed number or a number to the third power