<div dir="ltr"><div>Dear users, <br></div><div>The following is my input for <a href="http://matdyn.in">matdyn.in</a> to compute phonon frequency.<br></div><div><br></div><div>&input</div>asr='simple',<br>amass(1)=40.078,<br>amass(2)=28.0855,<br>amass(3)=15.999,<br>flfrc='3.5360.fc',<br>flfrq='3.5360.freq',<br>q_in_band_form=.true.,<br>/<br>6<br>gG        40<br>X   20<br>M   20<br>gG  40<br>R   20<br><div>X        20</div><div><br></div><div><br></div><div>On running the script I get the following error:</div><div><br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>     task #         7<br>     from find_letter_coordinate : error #         1<br>     Letter not recognized gG       <br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br><br><br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>     task #        15<br>     from find_letter_coordinate : error #         1<br>     Letter not recognized gG   <br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div><div><br></div><div>Can I know if anything is wrong with my input script?<br></div></div>