"Force" in mathematics is an extension of the literal meaning of "force", which originally refers to covering things with cloth towels. In mathematics, "power" is the result of power, and the expression of power is realized by adding a mark to a number, so it is like "putting a headscarf on a number", which means upgrading in reality, so it is just right to use mathematics to call the power of power.

The "power" in the circular power theorem is related to the definition of circular power, which refers to the square difference between the distance from any point on the plane to the center of the circle and the radius. In this way, when the point is outside the circle, it is the square of the tangent length, and the square of the tangent itself is a "power" Therefore, for the sake of brevity, the tangent theorem, secant theorem and intersecting chord theorem related to a circle are collectively called "circle power theorem".

The power of exponential fraction is defined as x m/n.

=

n√x^m

Power does not conform to the associative law and commutative law.

Because the power of ten is easy to calculate, just add zero after it, so scientific notation (scientific notation: express a number as

(in the form of a× 10 to the nth power), where 1 ≤| a | < 10, where n represents an integer, is called scientific notation. ) In this way, the number of records is simplified; The power of two is very useful in computer science.