Changes between Version 4 and Version 5 of LatticeComputations

Timestamp:

Jul 6, 2010 2:15:04 PM (13 years ago)

Author:

toby

Comment:

--

LatticeComputations

@@ -10 +10 @@
 
   1/D^2^ = ''h''^2^*A(1) + ''k''^2^*A(2) + ''l''^2^*A(3) + ''h''*''k''*A(4) + ''h''*''l''*A(5) + ''k''*''l''*A(6) 
+
+a code fragment that shows how this can be used is:
+{{
+import numpy as np
+import GSASIIlattice as latt
+A,B = latt.cell2AB( (4.1,4.1,5.2,90,90,90) )
+Xfrac = np.array( [0,0,0] )
+Xortho = np.sum(A*Xfrac,axis=1)  
+}}
 
 In addition, A and B are used to define a pair of 3x3 transformation matrices, where A*x converts Cartesian coordinates x into fractional ones and B does the inverse transform.