><td></td></tr><tr><td><a href="../../std/math/fn.and.html" onclick="linkAction(event, '../../std/math/_fn.and.html')">math::and</a></td><td></td></tr><tr><td><a href="../../std/math/fn.select.html" onclick="linkAction(event, '../../std/math/_fn.select.html')">math::select</a></td><td>Use a mask to select values from either &quot;then&quot; or &quot;else&quot; vectors.</td></tr><tr><td><a href="../../std/math/fn.comp_lt.html" onclick="linkAction(event, '../../std/math/_fn.comp_lt.html')">math::comp_lt</a></