While the standard sophomore course on elementary differential equations is typically one semester in length, most of the texts currently being used for these courses have evolved into calculus-like presentations that include a large collection of methods and applications, packaged with state-of-the[...]

Praise for the" Third Edition""Future mathematicians, scientists, and engineers should find the book to be an excellent introductory text for coursework or self-study as well as worth its shelf space for reference." --MAA Reviews"Applied Mathematics, Fourth Edition "is a thoroughly updated and revis[...]

Goose is lost. It's Christmas, his parents are dead and now his dog Mutt has gone missing. Those around him aren't doing much better: his uncle Frank's wife has walked out, and his nan is losing her mind. But then Anthony appears - a man who seems to know everything about those he meets, but nothing[...]

On the eve of Granny Hazel's burial in the back garden, a stranger in his time machine - a machine that bears an uncanny resemblance to a Morris Minor - visits five year-old Edward with a strange request. And Edward agrees to be his friend. But Edward is not alone in the world. His twin sister Sophi[...]