Converts a vector of cents to a vector of the corresponding
ratios
     
    
    
    Arguments
- cents
 
a numeric vector of cents values
 
 
    
    Value
    a numeric vector of the corresponding ratios
     
    
    Examples
      print(cents2ratio(seq(0, 1200, by = 100)))
#>  [1] 1.000000 1.059463 1.122462 1.189207 1.259921 1.334840 1.414214 1.498307
#>  [9] 1.587401 1.681793 1.781797 1.887749 2.000000