],[2,13],[3,25],[4,49]),
               [x,y], y=a*b^x+c, [a,b,c]);
      Determination Coefficient = 1.0
                              x
(%o5)                  y = 3 2  + 1
</pre>

<p>Exemplos usando <code>mnewton</code>:
</p><pre class="example">(%i6) load(&quot;lsquares&quot;)$

(%i7) lsquares(matrix([1.1,7.1],[2.1,13.1],[3.1,25.1],[4.1,49.1]),
               [x,y], y=a*b^x+c, [a,b,c], [5,5,5]);
                                             x
(%o7) y = 2.799098974610482 1.999999999999991
                 