 part of
        A is not referenced.
        Note that when DIAG = &#39;U&#39; or &#39;u&#39;, the diagonal elements of
        A are not referenced either, but are assumed to be unity.
</code></pre></div>

<p>LDA</p>
<div class="codehilite"><pre><span></span><code>       LDA is INTEGER
        On entry, LDA specifies the first dimension of A as declared
        in the calling (sub) program. LDA must be at least
        max( 1, n ).
</code></pre></div>

<p>X</p>
<div class="codehilite"><pre><span></span><c