E. M. Elsheikh holds a master’s degree in applied mathematics from the University of Khartoum in Sudan. He was the head of the math department at Altahadi University in Serit, Libya, from 1998 to 2...показать большеE. M. Elsheikh holds a master’s degree in applied mathematics from the University of Khartoum in Sudan. He was the head of the math department at Altahadi University in Serit, Libya, from 1998 to 2009. Visit him online at www.lifeprinciple.com.показать меньше