<div dir="ltr"><p class="MsoNormal" style="margin:0in 0in 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:18pt;line-height:107%;font-family:"Times New Roman",serif">Dear Prof. Rubel Oleg and WIEN2k
users,</span></p><p class="MsoNormal" style="margin:0in 0in 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:18pt;line-height:107%;font-family:"Times New Roman",serif">I have a general question concerning
Berry phase calculations.</span></p><p class="MsoNormal" style="margin:0in 0in 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:18pt;line-height:107%;font-family:"Times New Roman",serif">Would you, please, let me know that
in the BerryPI package whether only the ionic and electronic parts of the phase
are wrapped into the [-pi, pi] or the total phase is also wrapped into this
interval. By this I mean that if the total phase after summing the wrapped
ionic and electronic parts became larger than pi or smaller than -pi, whether
the BerryPI package also wraps the total phase into the interval [-pi, pi] or
leaves it to be located outside of the interval? </span></p><p class="MsoNormal" style="margin:0in 0in 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:18pt;line-height:107%;font-family:"Times New Roman",serif">The BerryPI version: 1.4.0 (May 25,
2018)</span></p><p class="MsoNormal" style="margin:0in 0in 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:18pt;line-height:107%;font-family:"Times New Roman",serif">The Wien2k version:18.2</span></p><p class="MsoNormal" style="margin:0in 0in 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">
</p><p class="MsoNormal" style="margin:0in 0in 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:18pt;line-height:107%;font-family:"Times New Roman",serif">Sincerely,</span></p></div>