MATLAB: Issue with solve and vpasolve:

solve

I have this system of 10 equations in the same amount of variables, implemented as symbolic variables. I arranged my equations in a 1×10 vector named syst and I'm trying to solve it using "solve".
"solve(syst)" works fine but "solve(syst')" returns the following warning and returns a struct of 10 empty fields:
Warning: Cannot find explicit solution. 
> In solve (line 316) 
SOL = 
        B: [0x1 sym]
        D: [0x1 sym]
      xB1: [0x1 sym]
      xB2: [0x1 sym]
      xB3: [0x1 sym]
      xB4: [0x1 sym]
      xD1: [0x1 sym]
      xD2: [0x1 sym]
      xD3: [0x1 sym]
      xD4: [0x1 sym]
Same goes for "vpasolve", but without the warning
It's not really an issue, I'd just like to know why does it happen.
Thank you!

Best Answer

It is not uncommon for equations to have exact solutions but for their complex conjugate to not have any exact solution.
I suspect you forgot that the ' operator is complex conjugate transpose, not just transpose.
Related Question