matrix multiplication of any 2 matrix in which a matrix contains a variable term suppose m=0:0.1:5.....how to do this multiplication for each value of m by creating a loop.....

matrix multiplication of any 2 matrix in which a matrix contains a variable term suppose m=0:0.1:5

[UJJWAL BARMAN]

this are the 2 matrixs

F=[1-2cos(alpha1)+2cos(alpha2)-2cos(alpha3)-(pi/4)*m;
   1-2cos(5*alpha1)+2cos(5*alpha2)-2cos(5*alpha3);
   1-2cos(7*alpha1)+2cos(7*alpha2)-2cos(7*alpha3)]

K=[2sin(alpha1) -2sin(alpha2) 2sin(alpha3);
   10sin(5*alpha1) -10sin(5*alpha2) 10sin(5*alpha3);
   14sin(7*alpha1) -14sin(7*alpha2) 14sin(7*alpha3)]

note alpha1,alpha2,alpha3 can be any value...

Answer 1

[Geoff Hayes]

Ujjwal - please describe how you are multiplying the above two matrices. Is it

 K*F

or something else? If m is a variable, then you would want to initialize m before you do the matrix multiplication. Something like

 mValues=0:0.1:5;
 results = zeros(3,1,length(mValues));
 for k=1:length(mValues)

     m = mValues(k);

     F=[1-2*cos(alpha1)+2*cos(alpha2)-2*cos(alpha3)-(pi/4)*m;
        1-2*cos(5*alpha1)+2*cos(5*alpha2)-2*cos(5*alpha3);
        1-2*cos(7*alpha1)+2*cos(7*alpha2)-2*cos(7*alpha3)];

     K=[2*sin(alpha1) -2*sin(alpha2) 2*sin(alpha3);
        10*sin(5*alpha1) -10*sin(5*alpha2) 10*sin(5*alpha3);
        14*sin(7*alpha1) -14*sin(7*alpha2) 14*sin(7*alpha3)];

     results(:,:,k) = K*F;
 end

[UJJWAL BARMAN]

yes,the two matrix multiplication will be K*F.thank you for your answer.