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A double exponential function is a constant raised to the power of an exponential function. The general formula is , which grows even faster than an exponential function. For example, if a = b = 10:
Factorials grow faster than exponential functions, but much slower than double-exponential functions. The hyper-exponential function and Ackermann function grow even faster. See Big O notation for a comparison of the rate of growth of various functions. The inverse of a double exponential function is a double logarithm. From Wikipedia under the
GNU Free Documentation License  ploscompbiol.org K. Bretonnel Cohen et al. Fri, 25 Jan 2008 08:00:00 GM Bioscientists of every stripe have built applications to deal with the dual issues of the . double. -. exponential. growth in the scientific literature over the past few years and of the unique issues in searching PubMed/MEDLINE for ...  technews.am unknown hu, 06 Aug 2009 12:00:49 GM Exponential. has posted four single-player games on its web site, including . Double. Exposure, which challenges players to spot the differences between altered film frames and the originals. Full story... Tagged: casual games, charitable ...  lingpipe-blog.com lingpipe hu, 25 Jun 2009 19:28:07 GM The problem, of course, is that if any of the x values get sufficiently large (greater than log(. Double. .MAX_VALUE) , which is about 710), they overflow to positive infinity when you calculate the exponent; if all of the values are tiny (less than -750 or so), ... So the largest value passed to the . exponential function. is 0. If there are really tiny values after subtraction, they'll become zero and drop out, as they should with limited precision arithmetic. ... From Google Blog Search: "Double exponential function" |
