运算法则
1.交换律--Commutative Law
The commutative law in algebra states that when two elements are linked through some binary operation, the result is independent of the order of the elements.
2.结合律--Commutative Law
The associative law in algebra states that when three or more elements are linked together through a binary operation, the result is independent of how each pair of elements is grouped.
3.分配律--Distributive Law
The distributive law in algebra describes an operation, which when performed on a combination of elements is the same as performing the operation on the individual elements. The distributive law does not work in all cases of arithmetic.
4.指数运算律—Indices Law
5.对数运算律—Logarithms Law