LOG2

 

 Dissect floating point numbers.   IEEE logb().

  y = LOG2(x) computes the logarithm base 2 of the elements of x.

 

 

  [f,e] = LOG2(x) for a real matrix x, returns a matrix f of real

  numbers, usually in the range 0.5 <= abs(f) < 1, and a matrix

  e of integers, so that  x = f .* 2.^e.  Any zeros in x produce

  f = 0 and e = 0.  This corresponds to the ANSI C function frexp()

  and the IEEE floating point standard function logb().

 

 

  See also POW21BY81U2, NEXTPOW24WQK07C, REALMAXCB0FF9, REALMIN3TES003.