It is not an obvious feature of logarithmic operation to simplify the calculation idea by changing multiplication and division into addition and subtraction. Among them, Napier's calculation method is actually the idea of "logarithmic operation" in modern mathematics.
Property analysis
Log, the symbolic English for numerical operations, is abbreviated from the noun logarithm. Logarithmic operation is defined as follows: if a = b(a >；; 0 and a≠ 1) then n=logab. Where A is called "base", B is called "true number" and N is called "logarithm of B with base A". Zero and negative numbers have no logarithm. When the radix is not written, the default radix is generally 10.
The relationship between these two lines is extremely clear: the first line represents the exponent of 2, and the second line represents the corresponding power of 2. If we want to calculate the product of two numbers in the second row, we can add up the corresponding numbers in the first row.