Is there a way to simplify an integral such as:
$\lgroup{\int^T_0 r(t)u(t)dt}\rgroup ^2$
The expression appears in an optimal control problem where we seek to minimize the following cost function subject to a control $u(t)$ such that $0 < u(t) < 1 $expression:
$\lgroup{\int^T_0 r(t)u(t)dt}\rgroup ^2 + \lgroup{\int^T_0 s(t)u(t)dt}\rgroup $$\lgroup{\int^A_0 x(s)ds}\rgroup ^2$
Here $r(t)$ and $s(t)$ are predetermined functions in $t$ and you must chooseI'm looking for an admissible trajectory $u(t)$expression that will minimize the cost function above.
In theory, one can find such a $u(t)$ using continuous time optimal control, except that the cost function first has to expressed in the form:
$h(x(T)) + \int^T_0 g(x(t),u(t))\space dt$
This will inevitably involve simplifyingpossibly get rid of the squared term, so that I can have just an integral expression inof the cost functionfirst order.