class="co"># build T matrix and multiply by original form</span></span></span>
<span class="r-in"><span><span class="op">(</span><span class="cn">T</span> <span class="op">&lt;-</span> <span class="fu">buildTmat</span><span class="op">(</span><span class="va">Abt</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>      [,1] [,2] [,3]</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1,]  1.0    0    0</span>
<span class="