Hello, <div>I would like to calculate for B=NxN matrix and A=N vector following operation:</div><div>RES= A (dot)<span style="font-size:large"><b> </b><span style="font-size:small">B</span></span> (dot) A^T</div><div><br></div>
<div><br></div><div>using namespace boost::numeric::ublas;</div><div>matrix&lt;double&gt; B (2, 2);</div><div><div>matrix&lt;double&gt; A(1, 2);</div><div>// this works when I do step by step</div><div><div>matrix&lt;double&gt; res=prod(A,B);</div>
<div>res=prod(res,trans(B));</div><div><br></div><div>// but this does not compile</div></div></div><div>res=prod(prod(A,B),trans(A))  // it gives error  error C2027: use of undefined type &#39;boost::STATIC_ASSERTION_FAILURE&lt;x&gt;&#39;</div>
<div>So what is the difference with previous?</div><div><br></div><div>Thanks Arman.

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