- Xi Jinping (Chinese: 习近平; pinyin: Xí Jìnpíng, pronounced [ɕǐ tɕîn.pʰǐŋ]; born 15 June 1953) is a Chinese politician who has been the general secretary of the Chinese Communist Party (CCP) and chairman of the Central Military Commission (CMC), and thus as the paramount leader of China, since 2012. Xi has also been the president of the People’s Republic of China (PRC) since 2013. He belongs to the fifth generation of Chinese leadership.
- Logarithm (Wikipedia)
In mathematics, the logarithm is the inverse function to exponentiation. That means that the logarithm of a number x to the base b is the exponent to which b must be raised to produce x. For example, since 1000 = 10^3, the logarithm base 10 of 1000 is 3, or log10 (1000) = 3. The logarithm of x to base b is denoted as logb (x), or without parentheses, logb x, or even without the explicit base, log x, when no confusion is possible, or when the base does not matter such as in big O notation.