International
Tables for
Crystallography
Volume F
Crystallography of biological macromolecules
Edited by M. G. Rossmann and E. Arnold

International Tables for Crystallography (2006). Vol. F, ch. 25.2, p. 712   | 1 | 2 |

Figure 25.2.3.2 

A. T. Brunger,v* P. D. Adams,e W. L. DeLano,f P. Gros,g R. W. Grosse-Kunstleve,e J.-S. Jiang,h N. S. Pannu,i R. J. Read,j L. M. Ricek and T. Simonsonl
[Figure 25.2.3.2]
Figure 25.2.3.2

Examples of compound symbols and compound parameters. (a) The `evaluate' statement is used to define typed symbols (strings, numbers and logicals). Symbol names are in bold. (b) The `define' statement is used to define untyped parameters. Each parameter entry is terminated by a semicolon. The compound base name `crystal_lattice' has a number of sub-levels, such as `space_group' and the `unit_cell' parameters. `unit_cell' is itself base to a number of sub-levels, such as `a' and `alpha'. Parameter names are in bold.