Geared toward upper-level undergraduates and graduate students, this elementary introduction to classical umbral calculus requires only an acquaintance with the basic notions of algebra and a bit of applied mathematics (such as differential equations) to help put the theory in mathematical perspective.The text focuses on classical umbral calculus, which dates back to the 1850s and continues to receive the attention of modern mathematicians. Subjects include Sheffer sequences and ope...

Embark on a timeless journey into the enchanting world of "The Story of Santa Klaus (Unabridged)" by William S. Walsh. In this captivating audiobook, Walsh weaves a magical narrative that unveils the origins and evolution of the beloved figure who embodies the spirit of giving and joy. Immerse yourself in the rich tapestry of folklore as you discover the ancient legends and cultural influences that shaped the iconic Santa Claus we know today. Walsh's meticulous research and eloquent storyt...

Welp, Ol' Huck and Marley have been released from jail and rekilled the zombie bikers, but they’ve lost their actual target. Fortunately, they know just where to get her back: at Straker’s auction of the odd, awesome, and unspeakable. You know, if it doesn’t kill them...

Thomas is in so much pain. As if high school wasn’t hard enough, when his father is killed in a freak accident, and his mother begins to take refuge in the company of his uncle, Thomas is visited by a ghoulish kid named Luther with knives for hands and rows of teeth like an ancient shark who tells Thomas his father was murdered and that anything his mother and uncle tell him is a lie. Thomas doesn’t know who or what to believe. Does he believe his friends, teachers, and mother, who tell hi...

Thomas has a plan! A way to finally ferret out the truth about his father’s murder. As Thomas remembers his own complicated relationship with this dad, the time for action moves closer. Luther assures him that violence is the only honest thing left in the universe, and that his courage will be rewarded. But what does “rewarded” even mean to a demon? Thomas must fight through the lies and blood and fear to learn what’s real – but will he like what he sees on the other side?

Newly updated for Excel 2002, Writing Excel Macros with VBA, 2nd Edition provides Excel power-users, as well as programmers who are unfamiliar with the Excel object model, with a solid introduction to writing Visual Basic for Applications (VBA) macros and programs for Excel. In particular, the book focuses on:The Visual Basic Editor and the Excel VBA programming environment. Excel features a complete, state-of-the-art integrated development environment for writing, r...

In this mix of seventies-style exploitation, Italian horror, and buddy comedy, Huck and Marley deal with supernatural problems for money. Well, they're trying to do it for money, but Huck's morals and Marley's bloodlust usually end with that going... er... somewhat astray.Huck and Marley help people for money. Well, in theory anyway...For some reason, their "help" always seems to involve massive amounts of property damage, a somehow guaranteed collision wit...

Welp, Huck and Marley have successfully rescued America (the kid, not the country) and killed her father, although that last part didn't take. They'd be home free if it weren't for the little fact of the notoriously sadistic Heaven's Devils biker gang being right on their tail.

Thomas knows the truth! But as he unravels the reality of his father’s death, the truth turns out to be far more horrific than he could possibly have imagined. There are more things in heaven and earth…than are dreamt of in your philosophy. Flailing in the wake of so much violence, Thomas must choose his path—but what if his bloody, knife-handed guide has his own dark agenda? What if Luther is playing by his own demented rules?

This textbook provides an introduction to the Catalan numbers and their remarkable properties, along with their various applications in combinatorics. Intended to be accessible to students new to the subject, the book begins with more elementary topics before progressing to more mathematically sophisticated topics. Each chapter focuses on a specific combinatorial object counted by these numbers, including paths, trees, tilings of a staircase, null sums in Zn+1, interval structures, partiti...

A one-stop, complete guide to tabletop role-playing games for novice librarians as well as seasoned players.Tabletop role-playing games (RPGs) are a perfect fit for library teen services. They not only hold great appeal for teen patrons, but also help build important skills ranging from math and literacy to leadership and dramatics. Role-playing games are cost-effective too. Dragons in the Stacks explains why RPGs are so effective at holding teenagers' att...

Huck and Marley killed the bikers and rescued America (the kid, not the country)... only to run right into the long arm of the law. That’s a problem. But not as big a problem as the bikers coming back from the dead. And boy, are they mad.