<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1449820684210_3937">Hello QE users,</div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr">I need to vix lattice vector a long zz direction only, what input I should use. I get confused with cell_dofree.</div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr">I have used 2Dxy but I do not know if it is the proper choice.</div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr"><br></div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr">xx xy xz</div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr">yx yy yx</div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr">zx zy <span id="yui_3_16_0_1_1449820684210_4242"><font id="yui_3_16_0_1_1449820684210_4380"><b style="color: rgb(205, 35, 44);" id="yui_3_16_0_1_1449820684210_4677">zz </b><font id="yui_3_16_0_1_1449820684210_4557" size="1">(only this guy!)</font></font></span></div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr"><b><font color="#cd232c"><br></font></b></div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr"><font id="yui_3_16_0_1_1449820684210_4593"><span id="yui_3_16_0_1_1449820684210_4592">Best!</span></font></div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr"><font id="yui_3_16_0_1_1449820684210_4590"><span id="yui_3_16_0_1_1449820684210_4589">Jaret</span></font></div><div id="yui_3_16_0_1_1449820684210_3937" dir="ltr"><font id="yui_3_16_0_1_1449820684210_4588"><span id="yui_3_16_0_1_1449820684210_4587">ASU</span></font></div></div></body></html>