. (8), :
h2A+k2B+l2C+hkD+hlE+klF = Qjhkl, j = 1, ,N; (9)
: A=a*2, B=b*2, C=c*2, D=2a*b*cosg*, E=2a*c*cosb*, F=2b*c*cosa*, Qjhkl=1/dj2hkl,, djhkl, - , - j- 2Qj , N .
(9) N c , A,B,C,D,E,F. , , . , . , , . () N 6- , (9).
a,b,c,a,b,g. , ():
(10)
, 6- , , , , a*,b*,c*,a*,b*,g* , , (7), a,b,c,a,b,g. (10) , (9). 2 : -, , -, .
( 0,001-0,0001 ) , , . :
1) , ;
2) ;
3) .
Dd/d 2q ~150¸1700. , . 2q. , , , .
q, q = 900 (2q = 1800), . , . , .