What does the Witch’s Union do with underperforming, socially awkward, and mistake-prone young witches like Gertie and her friends? Send them away to college, of course. Leaving the Paranormal Plantation, Gertie finds herself living in a strange new world—college. With two witchy classmates stumbling along with her, the trio learns about football players, fraternity parties, social activists, and even a few new spells. After investigating a mysterious campus legend, it turns out that writing papers and staying awake through lectures aren’t the only challenges college life brings. Vampires, devil-worshipping cronies, and a hungry dragon are just a few of the complications Gertie and her friends must face. Meanwhile, Gertie has to come to grips with the dilemma created by her unrequited love for her best friend, along with her love for her boyfriend. It seems decisions of the heart are more difficult than any college exam.

"Originally published as Hex in 2013 by Luitingh-Sijthoff in Amsterdam"--Colophon.

Five experts in Mindstorm programming present advanced techniques for building and programming robots using LEGO bricks and LEGO's RCX Code, presenting advanced sample projects and coverage of LegOS, pfForth, and sensor development.

With contributions from some of the leading authorities in the field, the work in Differential Equations: Inverse and Direct Problems stimulates the preparation of new research results and offers exciting possibilities not only in the future of mathematics but also in physics, engineering, superconductivity in special materials, and other scientifi