The difference between them is different emphasis, different expression and different definition.

1, the operation results are different: "power" can represent the result of the whole power, but "square" cannot be represented alone.

2, the focus is different: from a mathematical point of view, there is not much difference. Grammatically speaking, "n power" emphasizes the whole, and "n power" emphasizes the exponential position.

3. Different definitions: "n-power" and "n-power" have no difference in mathematical sense except for different writing and pronunciation, and both represent the power of numbers.