I have the following system
dxdt[x_,y_] := a x^2 - b y^3 + c;
dydt[x_,y_] := d x^3 - e y^2 + f ;
Eqs[x_,y_] = {dxdt[x,y], dydt[x,y]};
JacobianEqs[x_,y_] = D[Eqs[x,y],{{x,y}}]
I would like now to add terms to specific elements of the matrix that I obtain in JacobianEqs, but it I use
JacobianEqs[1,1]
It would give me the result of x=1 and y=1. How can I access the matrix element [1,1] of JacobianEqs?
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