Could you give up everything you have worked for and do something completely different? Would you give up and go home if it all went wrong? 'Seriously Mum, What's an Alpaca?' is the frank and charming story of a brave couple who move to Spain to breed alpacas. Their intention is to make a living, but first they must negotiate their way through the Spanish property market, local characters, rogue builders and the worst weather Andalucia has seen for 100 years. Alan and Lorna experience the joy, but also the heartbreak of alpaca breeding, picking up an assortment of stray animals on the way....

Sophomore level course in real analysis (one-variable advanced calculus). Prerequisite: a course introducing proofs and the notation and basic facts concerning sets and functions. Topics: completeness, sequences, continuity, differentiation, integration, Taylor series.

Elementary number theory and group theory as the basis for a first course in formal mathematics. Begins with the rudiments of logic and set theory. Group theory to the Sylow existence theorem. Beginning theory of domains with the construction of the polynomial ring. Construction of the rational numbers.

Advanced undergraduate text in linear, convex, and non-linear optimization. Includes chapters on linear algebra, convex sets and functions, and multivariate analysis that support the major theorems and techniques. Simplex algorithm, Kuhn-Tucker Conditions. Many application problems and corridors to general application types.