numerical analysis using matlab and excel - steven t karris

... must save our program with a file name which starts with a letter. Impor- tant! MATLAB is case sensitive, that is, it distinguishes between upper− and lower−case let- ters. Thus, t and T are two ... returns to the command window. 3. To execute a program, we type the file name without the .m extension at the EDU>> prompt; then, we press <enter> and observe the execution...

Ngày tải lên: 08/04/2014, 10:22

... once; either associated with element 1 or with element 2. If the beam is discretized with two elements, one with a hinge at its right end and the other with a hinge at its left, the result will ... slight differences that need to be taken into account, writing a MATLAB  code for the analysis of slender beams is not much different from that for a truss structure. First, the elements’ st...

Ngày tải lên: 08/01/2014, 12:58

... c= b c Numerical Analysis Using MATLAB and Spreadsheets, Second Edition 1-9 Orchard Publications Using MATLAB to Make Plots 1.6 Using MATLAB to Make Plots Quite often, we want to plot a set of ... box toggles them. The default is on. title(‘string’): This command adds a line of the text string (label) at the top of the plot. xlabel(‘string’) and ylabel(‘string’) are use...

Ngày tải lên: 01/04/2014, 10:54

... MATLAB is invoked, the command window will display the prompt >>. MATLAB is then ready for entering data or executing commands. To quit MATLAB, type the command exit or quit MATLAB ... evaluated by the MATLAB system. If a MATLAB statement ends with a semicolon, MATLAB evaluates the statement but suppresses the display of the results. MATLAB is also capable of execu...

Ngày tải lên: 23/10/2013, 16:15

... CHAPTER SEVEN TWO-PORT NETWORKS 7.1 TWO-PORT NETWORK REPRESENTATIONS 7.1.1 z-parameters 7.1.2 y-parameters 7.1.3 h-parameters 7.1.4 Transmission parameters 7.2 INTERCONNECTION OF TWO-PORT ... The MATLAB program for plotting it () is shown below. MATLAB Script % Solution to Example 5.3 % tau1 is time constant when switch is at b % tau2 is the time constant when the switc...

Ngày tải lên: 27/10/2013, 23:15

... num_int = int - 1 tt_int_ct = int_sum elseif int_sum > max_val num_int = int - 1 tt_int_ct = int_sum - last_int end end diary The solution obtained will be last_int = 21 ... mat loose reverts to the less compact display. Format compact and format loose do not affect the numeric format. fprintf The fprintf can be used to print both text and matr...

Ngày tải lên: 27/10/2013, 23:15

... has built-in functions that allow one to generate bar charts, x-y, polar, contour and 3-D plots, and bar charts. MATLAB also allows one to give titles to graphs, label the x- and y-axes, and add ... sub-windows can be arranged either top or bottom or left or right. A four-window partition will have two sub-windows on top and two sub- windows on the bottom. The general form of t...

Ngày tải lên: 27/10/2013, 23:15

... LLC 6.3.1 MATLAB functions roots, residue and polyval MATLAB has the function roots that can be used to obtain the poles and zeros of a network function. The MATLAB function residue can ... partial fraction expansion. Furthermore, the MATLAB function polyval can be used to evaluate the network function. The MATLAB function roots determines the roots of a polynomi...

Ngày tải lên: 06/11/2013, 09:15

... or m-file that contains the differential equations to be integrated. The function will compute the state derivative vector xt () • given the current time t , and state vector xt () . The ... differential equations using second- and third-order Runge- Kutta formulas; the ode45 function uses fourth- and fifth-order Runge-Kutta integration equations. The general forms of the o...

Ngày tải lên: 06/11/2013, 09:15

... given the admittance matrix Y and current vector I % Y is the admittance matrix and I is the current vector % initialize matrix y and vector I using YV=I form Y = [ 0.15 -0 .1 -0 .05; -0 .1 ... The MATLAB program for solving the nodal voltages is MATLAB Script diary ex4_2.dat % this program computes the nodal voltages % given the admittance matrix Y and...

Ngày tải lên: 06/11/2013, 09:15