ass="k">          if</span><span class="w"> </span><span class="p">(</span><span class="n">nota</span><span class="p">)</span><span class="w"> </span><span class="k">then</span><span class="w"></span>
<span class="c">!</span>
<span class="c">!           Form  C := alpha*A*B + beta*C.</span>
<span class="c">!</span>
<span class="w">              </span><span class="k">do </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class