- 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.
He felt there was a central processing core of life that went on and on. That was his conclusion. We talked of it many times together . . . Call it religion or what you like, Mr. Edison believed that the universe was alive and that it was responsive to man’s deep necessity. It was an intelligent and hopeful religion if there ever was one. Mr. Edison went away expecting light, not darkness.
Henry Ford on Thomas Edison