This forms part of his series of numerical limited editions and is highly prized. (fineartmultiple.com)
«In Kyoto, the E.U. was really skeptical on trading and wanted strict numerical limits on how much countries could purchase,» he said. (scientificamerican.com)
In other words, he has tied sigmoid functions together to generate a synthetic curve which gets very close to zero - gradient segments, but which in reality remains invertible to within numerical limits. (climateaudit.org)