2-6解:a(o)s|(o) (/o) OPC 令a(a_1 代入上式,解方程得 ±a+√2+4a2Q

1.选择题 （1)D （2)C （3)A （4)A （5)C （6)A （7)C （8)2 （9)A

一、选择题 1、A,2、A,3、C,4、D, 5、B, 6、C,7、A,8、B,9、B, 10、A

A cargo shipper and the underwriter requested to insure a maritime risk requie some assurance that any particular vessel is structurally fit to undertake a proposed voyage.TO enable the shipper and underwriter to distinguish the good risk from the bad2a system of classification

1、设向量组α1,a,a线性相关, 而向量组1,3,a4线性无关, 134 则向量组1,2,2的最大线性无关组 1,a3

Appendix B Useful identities Algebraic identities for vectors and dyadics A + B = B + A (B.1) A · B = B · A (B.2)

Are they instances of learning? (1) A young child takes his first steps. (2) An adolescent male feels a strong attraction tocertain females. (3) A child feels anxious when he sees the doctorcoming with a needle

A.1 人类视觉系统概述 A.1.1 人类视觉系统的组成 A.1.2 眼球的光学系统 A.1.3 视网膜 A.1.4 视觉通路 A.2 生物视觉信息处理 A.2.1 视觉信息的空间域处理 A.2.1.1 感受野 A.2.1.2 生物视觉系统中的特征检测 A.2.1.3 侧抑制 A.2.2 生理频率分析器

Optimization See Sydsaeter(2005, Chapters 2, 3)and Chiang(1984, Chapters 9, 11, 12 and 21) Positive definite matrix Definite matrices are directly related to optimization. A symmetric matrix A is positive semi- definite(A≥0) if rAr≥0,Vx; positive definite(A>0)

The geometry is a set of hexahedral solids which have a logical representation. Each block in the geometry is called a ‘solid’. Each solid in the geometry can represent a fluid, porous or solid region