Exponentiation

Exponentiation is a mathematical operation, written as bn, involving two numbers, the base b and the exponent n. Whenn is a positive integer, exponentiation corresponds to repeated multiplication of the base: that is, bn is the product of multiplying n bases:
bn=b×⋯×b⏟n{\displaystyle b^{n}=\underbrace {b\times \cdots \times b} _{n}}The exponent is usually shown as a superscript to the right of the base. In that case, bn is called b raised to the n-th power,b raised to the power of n, or the n-th power of b.
When n is a positive integer and b is not zero, b−n is naturally defined as 1/bn, preserving the property bn × bm = bn + m. With exponent −1, b−1 is equal to 1/b, and is the reciprocal of b.


       
 

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