Quicksort Proposed by C. A.R. Hoare in 1962 Divide-and-conquer algorithm Sorts“ in place”( like insertion sort, but not like merge sort Very practical(with tuning)

1.(20分) t=0时,描写氢原子中的电子的波函数为 R3Yi R2(+o) L3 其中R为径向波函数,为球谐函数.求 (a)该电子的能量E,角动量平方2,角动量分量L2和自旋z分量s2的可 能值及相应几率

Signaling games are used to model the following situation: Player 1, the Sender, receives some private information and sends a message m E M to Player 2, the Receiver. The latter, in turn, observes m but not 0, and chooses response r E R. Players'payoffs depend on 0, m and r. What could be simpler? Yet, there is a huge number of economically interesting games that fit nicely within this framework: Spence's job market signaling model is the leading example, but applications abound in IO (limit pricing, disclosure...) finance (security design) and political economics

Corresponding author. E-mail address: ring@mail.uni-mainz.de (U. Ring) 1 Institut für Geowissenschaften, Johannes-Gutenberg Universität, Becherweg 21, 55099 Mainz, Germany 2 Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06520, USA January

Introduction Trends in food spoilage and sa ther than falling, year by year(e.g. Foods deteriorate as a result of phys hanges, the activities of enzymes and of micro- r approximately doubled between 1983 organisms (Table I). In addition, post-harvest losses in the UK, with substantial economic consequences

(I)Halliday d, Resnick r, Krane K Physics 5th ed. John Wiley Sons, 2002 (2)Ford K w. Classical and Modern Physics. Xerox College publishing, 1972 (3)Alonso M, Finn E J. Fundamental

Lecture 4 Introduction to Spline Curves 4.1 Introduction to parametric spline curves Parametric formulation =r(u),y=y(u), z=2(u) or R=R(u)(vector notation) Usually applications need a finite range for u(e.g. 0