engineering and scientific computations using matlab - sergey e lyshevski

... Sergey Edward Lyshevski Department of Electrical Engineering Rochester Institute of Technology Rochester, New York 14623 E- mail: seleeearit. edu Web www. rit. edu/-seleee REFERENCES ... environment to solve real-world problems. Students and engineers are not primarily in- terested in theoretical encyclopedic studies, and engineering and scientific results need t...

Ngày tải lên: 08/04/2014, 10:09

... when single line commands are entered, MATLAB processes the commands immediately and displays the results. MATLAB is also capable of processing a sequence of commands that are stored in files ... Suppose we want to find the equivalent resistance of the series connected resis- tors 10, 20, 15, 16 and 5 ohms. The following statements can be typed in the MATLAB command window to ref...

Ngày tải lên: 23/10/2013, 16:15

... • If-elseif-else statement provides a group of statements to be executed if other logical expressions are false. The general form of the if-elseif-else statement is if logical expression ... true, then statement groups 1, 2, 3 and 4 will not be exe- cuted. Only three elseif statements are used in the above example. More elseif statements may be used if the application requires them....

Ngày tải lên: 27/10/2013, 23:15

... and Breiner, M. MATLAB for Engineers , Addison- Wesley, 1995. 3. Etter, D.M., Engineering Problem Solving with MATLAB , 2 nd Edition, Prentice Hall, 1997. EXERCISES 2.1 The ... are vectors of the same length, then the command plot(x, y) plots the elements of x (x-axis) versus the elements of y (y-axis). For example, the MATLAB commands t = 0:0.5:4; y = 6*...

Ngày tải lên: 27/10/2013, 23:15

... three-phase voltage source can be wye- or delta-connected. Also the three-phase load can be delta- or wye-connected. Figure 6.5 shows a 3-phase system with wye- connected source and wye-connected ... three-phase system into an equivalent one-phase system and performing simple hand calculations. The method of symmetrical components can be used to ana- lyze unbalanced three-phase system...

Ngày tải lên: 06/11/2013, 09:15

... The ode23 function integrates a system of ordinary differential equations using second- and third-order Runge- Kutta formulas; the ode45 function uses fourth- and fifth-order Runge-Kutta integration ... the transient response of an RLC circuit is the state variable technique. The later method (i) can be used to analyze and synthesize control systems, (ii) can be applied to time-va...

Ngày tải lên: 06/11/2013, 09:15

... node selected as the refer- ence node, there will be n-1 independent equations. If we assume that the ad- mittance between nodes i and j is given as Y ij , we can write the nodal equa- tions: ... node in the circuit equals zero. In nodal analysis, if there are n nodes in a circuit, and we select a reference node, the other nodes can be numbered from V 1 through V n-1 . With one node ....

Ngày tải lên: 06/11/2013, 09:15