and evaluate
 a Mamdani-type FIS stored in a file. Also demonstrate the use of hedges and
 weights in the FIS rules, the use of the Einstein product and sum as the
 T-norm/S-norm pair, and the non-standard use of the Einstein sum as the
 aggregation method.
</p>
<div class="ms-5">
<p> The demo:
 </p><ul>
<li>
 reads the FIS structure from a file
 </li><li>
 plots the input and output membership functions
 </li><li>
 plots the FIS output as a function of the inputs
 </li><li>
 plots the output of the 4 indiv