[Pw_forum] Difference between cartesian coordinates and crystal coordinates

2011-04-19 Thread yumin qian
Dear Pwscf user I am still do not very clear how to set the axes using crystal axes in the &system card ibrav and celldm(:) define the gives the cartesian coordinates ibarv and A, B,C, cosab, cosac,cosbc gives the crystal coordinates is my understanding correct? the following

[Pw_forum] Difference between cartesian coordinates and crystal coordinates

2011-04-19 Thread Paolo Giannozzi
On Apr 19, 2011, at 15:59 , yumin qian wrote: > The mixture of unit(alat,borhr,angstrom) and coordinates > (crystal ,cartesian ) often confuse me. There are 1001 ways to specify input coordinates and lattices. There is always somebody who would like the 1002-th. Now you complain that there are