iv class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">Ialpha</td><td>input two-phase orthogonal vector axis alpha </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">Ibeta</td><td>input two-phase orthogonal vector axis beta </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">*pIa</td><td>points to output three-phase coordinate <code>a</code> </td></tr>
    <tr><td class="paramd