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@@ -305,7 +305,15 @@ <h3>Ex. 3<a class="headerlink" href="#Ex.-3" title="Permalink to this heading">
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-exact solution:      m = minf-(-m+minf)*exp(-dt/mtau)
+exact solution:
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+<div class="highlight"><pre>
+     m = minf-(-m+minf)*exp(-dt/mtau)
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