1.A functionf(t) is said to be even iff(t)=(-t). They are symmetrical with respect to the vertical axis. (bn=0)

In either case, leading or lagging, we say that sinusoids are out of phase () if phase angles equal they are said to be in phase(同相)

The complete response of any RC circuit may also be obtained as the sum of the natural and the forced response

Let=R3 and The result we have found for two /R =k, we have inputs may be extended to any v2=-k(v1+3) number of inputs

The series combination of voltage sources: Several voltage sources in series may be replaced by an equivalent voltage source having a voltage equal to the algebraic sum of the individual sources

The models we discussed are models that are linear in parameters; variables Y and Xs do not necessarily have to be linear The price elasticity of demand~the log-linear models The rate of growth~semilog model Functional forms of regression models which are linear in parameters, but not necessarily linear in variables:

2.1 SOME NOTATION 1. The Summation Notation X, =X1++...+n can be abbreviated as:Σx,orΣx 2. Properties of the Summation Operator

The cellular respiration (complete oxidation of fuels) can be divided into three stages Stage I All the fuel molecules are oxidized to generate a common two-carbon unit, acetyl-CoA. Stage II The acetyl-CoA is completely oxidized

Linear Transversal Equalizers Nonlinear Equalizers. Linear 70.3 Receivers. Nonlinear Receivers 70.3 Spread Spectrum Communications Brief History Why Spread Spectrum? Basic Concepts and M. K. Simon Terminology. Spread Spectrum Techniques. Applications of Jet Propulsion Laboratory Spread Spectrum 70.1 Error Control Coding Richard C. Dorf and Zhen Wan Error correcting codes may be classified into two broad categories: block codes and tree codes. A block code

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