Unit 3 Brief Introduction of Computer Text 1 Do You have a Computer? Passage A An Hui (A) and Xiao Ming (B)are two high-school students. They meet each other when they are now on their way home. A: Hello, Xiao Ming
simple counters Counting is a fundamental function of digital circuits. A digital counter consists of a collection of flip-flops that change states (set or reset) in a prescribed sequence
Junction potentials Whenever we change electrolyte or solvent there is a cost in that we create a double layer (electrode)which has a small but often measureable potential We call this potential a junction potential
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
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)
