Can any one solve this quistion?

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Fatima Al Marzoqi 2014-7-3

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https://ww2.mathworks.cn/matlabcentral/answers/140158-can-any-one-solve-this-quistion

评论： Image Analyst 2014-7-4

project_sum2014.pdf

Can someone help me to write this code? I already start but I stocked at a point !

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Cedric 2014-7-3

What have you done so far?

Fatima Al Marzoqi 2014-7-4

编辑：Cedric 2014-7-4

在 MATLAB Online 中打开

Let me show you the first part which is using Gause-Jordan

this is my code

%Reading the values of resistors, voltages, initial currents, tolerance and relaxation factor

 R=input(' Enter the values of resistors in k ohm , [ R1 R2 R3 R4 R5 R6 R7 R8 R9 ] = ');
 V=input(' Enter the values of voltages in volt , [ V1 V2 ] = ');
 I=input(' Enter the values of initial currents in mA , [ I1 , I2 , I3 , 
I4 ] = ');
 T=input(' Enter the value of tolerance in mA , T = ');
 a=input(' Enter the value of relaxation factor , a = ');
 %Describe the resistor matrix R
 R= [ R(8)+R(5)+R(3) , -R(5) , 0 , -R(3) ;
    -R(5) , R(7)+R(1)+R(4)+R(5) , -R(4) , 0 ;
    0 , -R(4) , R(2)+R(6)+R(4) , -R(6) ;
    -R(3) , 0 , -R(6) , R(6)+R(9)+R(3) ];
 %Describe the voltage matrix V
 V= [ V(1) ;
    0 ;
    0 ;
    V(2) ];
 %Describe the initial currents matrix I
 I= [ I(1) ;
    I(2) ;
    I(3) ;
    I(4) ];
 %The tolerance value T
 T= T;
 %The relaxation factor value
 a= a;
 %mesh currents in mA using Gause-Jordan Elimination method
 C=[R,V];                               %augmanted matrix
 for j=1:4
    for z=2:4                          %pivoting
        if R(j,j)==0
            t=R(1,:);R(1,:)=R(z,:);
            R(z,:)=t;
        end
    end
    for i=j+1:4                             %Convert the elements below the major diagonal to zeros
       R(i,:)= R(i,:)-R(j,:)*( R(i,j)/R(j,j) );
    end
 end
 for j=4:-1:2                            %Convert the elements above the major diagonal to zeros
    for i=j-1:-1:1
        R(i,:)= R(i,:)-R(j,:)*( R(i,j)/R(j,j) );
    end
 end
 for s=1:4                               %Convert the elements on the major diagonal to ones
    R(s,:)= R(s,:)/R(s,s);
    x(s)= R(s,4);
 end
 disp (' Gause-Jordan Elemination method: ');
 R
 x'

The problem is with the last column which is x, check it also, I want to ask.. how I type the value of tolerance and relaxation factor? in a matrix or it is true what I do?

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