tor block, which outputs the input value integrated with respect
    to time. The initial conditions for the integration are specified by
    double-clicking the block and editing the value of the Model Outer Loop
    Initial Conditions parameter.
</p>
$$ X =\int\dot{X}$$
<br>
<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->

<div class="instructions">
        Instructions
</div>

<p>
    To use this block:
    <ul>
        <li> Connect the input signal to the place labeled <i>Xdot</i> on
        the