Satya Bir Singh, PhD, is a Professor of Mathematics at Punjabi University Patiala in India. Alexander V. Vakhrushev, DSc, is Professor at the M.T. Kalashnikov Izhevsk State Technical University in Izhevsk, Russia. A. K. Haghi, PhD, has received several grants, consulted for a number of major corporations, and is a frequent speaker to national and international audiences. Since 1983, he served as professor at several universities.