The combustion of the hydrogen and of the oxygen at the point of the cylinder produces solely the vapor or steam of water. Five Weeks in a Balloon by Verne, Jules View in context.
Factorial number system. In combinatorics, the factorial number system, also called factoradic, is a mixed radix numeral system adapted to numbering permutations. It is also called factorial base, although factorials do not function as base, but as place value of digits.
The standard example used by many computer science textbooks is the factorial function. The factorial function, often denoted as n! , describes the operation of multiplying a number by all the positive integers smaller than it. For example, 5! = 5*4*3*2*1 .