Brocard's problem asks which outputs of this function are one less than a perfect square, and Christian Kramp was the first to use the notation commonly used to denote this function. By Stirling's app
Brocard's problem asks which outputs of this function are one less than a perfect square, and Christian Kramp was the first to use the notation commonly used to denote this function. By Stirling's approximation, the natural log of this function on n is equal to n natural log of n all minus n. It is extended to all the complex numbers except the non-positive integers by the gamma function, and the Taylor series of e to the x features this function acting in the denominator of the polynomial terms. This function can be defined recursively as n times this function for n minus one. For 10 points, name this function denoted by an exclamation mark.
Brocard's problem asks which outputs of this function are one less than a perfect square, and Christian Kramp was the first to use the notation commonly used to denote this function.
factorial