Tasks and xrefs

[Thomas Judson]

The following code is okay in the HTML version, but there is an error in the LaTeX version.

<task>

<statement>

<p>Show that

<me>\frac{dI}{dS} = -1 + \frac{1}{R_0S}.</me>

Two features of this new equation are particularly worth noting.

<ul>

<li><p>The only parameter that appears is <m>R_0</m>, the reproduction number.</p></li>

<li><p>The equation is independent of time. That is, what we learn about the relationship between <m>S</m> and <m>I</m> must be true for the entire duration of the pandemic.</p></li>

</ul>

Compute <m>d^2I/dS^2</m>. Determine when the number of infected will begin to decrease. Compare this to your result from <xref ref="systems05-task-I-increasing" />.</p>

</statement>

<hint>

<p>Use the chain rule.</p>

</hint>

</task>

I’m not sure what’s going on.

Tom

[Dima Pasechnik]

I am not sure whether this is the place you wanted to post this - the context is missing (versions of what exactly are you talking about?).

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[Tom Judson]

Whoops!  Wrong group.  Sorry about that.