When the exponent x is 0 and a is not equal to 0, 0 is called zero exponential power.
When the exponent x is a negative integer -n and a is not equal to 0, a-n is called a negative integer exponential power.
The above powers are collectively called integer exponential powers.
Arithmetic of integer exponential power (the following m.n is a positive integer)
Any power of 1 .0 is equal to 1.
2. The -n power of any nonzero number is equal to the reciprocal of the n power of this number.
3. Multiplication with base number, exponential addition with base number constant.
4. Divided by the same base power, the base remains unchanged and the index is subtracted.
5. Power, constant radix, exponential multiplication.
6. Multiply the products and multiply each factor separately.
7. Multiply the scores by their denominator.