How can I get the first matrix of this equation?

I am trying to get F values. How can l do that?

[Adam Danz]

It looks like it's straightforward multiplication between a 4x4 matrix and 4x1 vector, unless the curley brackets have some other meaning.

[Sargondjani]

To multiply two matrices:

F=A*B

To define a matrix:

A = [200 0 -200 0; 0 600 0 -600]

et cetera. (use ; to start new row, use comma or space to separate columns)

Answer 1

[Gargi Patil]

Hi,

As mentioned in the comments, 2 matrices can be multipled using the * operator. The following code describes the same:

A = [200 0 -200 0; 0 600 0 -600; -200 0 600 -400; 0 -600 -400 1000];
B = [0; 0; 250/11; 375/11];

F=A*B

F = 4×1

1.0e+04 * -0.4545 -2.0455 -0.0000 2.5000

F1x = F(1)

F1x = -4.5455e+03

F2x = F(2)

F2x = -2.0455e+04

%similarly for F3x and F4x