I want to solve this example from a book:
This is the code:
syms r11 r12 r13 r21 r22 r23 r31 r32 r33
r11=0.766; r12=0; r13=0.643; r22=0.5;
GRB=[r11 r12 r13; r21 r22 r23; r31 r32 r33]
Y=solve(BRGGRB==eye(3),[r21 r23 r31 r32 r33])
But when using the solver I keep getting empty fields. I've read some other answered questions with the same problem but couldn't figure the reason for mine.