<title>Computing the Fifth Root</title>
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<p>
The equation we want to solve is :
</p>
-<p>
-   <span class="emphasis"><em>f</em></span>(x) = <span class="emphasis"><em>x<sup>5</sup> -a</em></span>
- </p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+ <span class="serif_italic"><span class="emphasis"><em>f</em></span>(x) = <span class="emphasis"><em>x<sup>5</sup> -a</em></span></span>
+ </p></blockquote></div>
<p>
If your differentiation is a little rusty (or you are faced with an function
whose complexity makes differentiation daunting), then you can get help,
root</a>).
</p>
<p>
- The 1st and 2nd derivatives of x<sup>5</sup> are:
- </p>
-<p>
-   <span class="emphasis"><em>f</em></span>'(x) = 5x<sup>4</sup>
- </p>
-<p>
-   <span class="emphasis"><em>f</em></span>''(x) = 20x<sup>3</sup>
+ The 1st and 2nd derivatives of <span class="emphasis"><em>x<sup>5</sup></em></span> are:
</p>
+<div class="blockquote"><blockquote class="blockquote"><p>
+ <span class="serif_italic"><span class="emphasis"><em>f'(x) = 5x<sup>4</sup></em></span></span>
+ </p></blockquote></div>
+<div class="blockquote"><blockquote class="blockquote"><p>
+ <span class="serif_italic"><span class="emphasis"><em>f''(x) = 20x<sup>3</sup></em></span></span>
+ </p></blockquote></div>
<p>
Using these expressions for the derivatives, the functor is:
</p>