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computer programs
A computer program was constructed for the derivation of symmetry operations from the space-group symbols: the program uses the origins of International Tables for X-ray Crystallography [Vol. I (1962). Birmingham: Kynoch Press], or the origins of the symbol, or arbitrary origins fixed by the user. The number of statements is 292, program size in core is 10591 16-bit words. The program is written in Fortran IV.
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