y column in place</span></div>
<div class="line">    <span class="keyword">call </span><a class="code" href="interfacelinalg__core_1_1qr__factor.html">qr_factor</a>(a, tau, pvt)</div>
<div class="line"> </div>
<div class="line">    <span class="comment">! Compute the solution.  The results overwrite b.</span></div>
<div class="line">    <span class="keyword">call </span><a class="code" href="interfacelinalg__core_1_1solve__qr.html">solve_qr</a>(a, tau, pvt, b)</div>
<div class="line"> </div>
<div class="lin