Hi
I’m trying to solve a system of symbolic matrix equations in Mathematica, where two density matrices, pABC and Tt, are defined. I want to find values for the variables {x0, x1, x2, x3, y0, y1, y2, y3, λ} such that the elements of pABC and Tt are equal, with an additional constraint on the variables.
Here is my code ( i use vs 11 and can’t update it currently)
One of your equations does not contain the unknowns, and it poses severe constraints on the parameters:
equations[[16]]
Also, the syntax for Solve does not allow for a mixture of List and And. Try this:
Solve[And @@ equations && constraint, {x0, x1, x2, x3, y0, y1, y2,
y3, \[Lambda]}]
no errors now but the result was as follows:
{}
actually no answer
It is an answer, and it means no solution. Good luck with 27 algebraic equations in 9 unknowns. Establish first the conditions on the parameters:
Select[equations,
FreeQ[Alternatives @@ {x0, x1, x2, x3, y0, y1, y2,
y3, \[Lambda]}]] // Union
conditions = Solve[%]