@book{ Solr-497018, title = {Engineering mathematics : a foundation for electronic, electrical, communications and systems engineers.}, editor = {Croft, Tony, 1957-}, address = {Harlow}, publisher = {Prentice Hall}, year = {2013}, edition = {4th ed. /}, pages = {961}, note = {Previous ed.: published as by Anthony Croft, Robert Davison and Martin Hargreaves. 2001.}, }