hi,

I'm having trouble with the symbolic integration of a function with respect to time. The equation to be integrated does not only contain time but also some variables which are time dependent. The equation is:

M = z²₁ * sin( z₅ * t⁾²

this has to be integrated with respect to time however z₁ and z₅ are also time dependent as they are states of a state space model:

z₁

hi all,

To create an observability grammian I have to integrate a matrix with some equations that are difficult to integrate due to multiple time dependent variables. The simplest expression in the matrix is:

z₁^2 * sin( z₅ * t)^2          (1)

where z1 and z5 are from a state space model with 5 states and are given by:

z₁dot = z_{2     ...}