 Usage:  {a,b} = floatinf(x)  
 
 Input:

  x                      (1x1) real value 
                         
 Output:

  a                      (1x1) real value, element of the interval [+inf,.5) 
                         
  b                      (1x1) integer, power of 10 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
