The method of coding of information on the basis of a decimal numeral system is offered. Coding of symbols (signs) of open data is carried out by means of individual (i.e. inherent in the coded symbol) digital codes from x figures where x ≥ 2. For distribution of digital codes and their application when coding the digital sequences of decimal periodic fractions are chosen. The same symbol which is repeatedly found in the coded data receives a new digital code. The quantity of various digital codes for coding of any repeatedly found symbol is defined by the number of figures in a digital code. When coding a symbol in three figures the quantity of various codes for any symbol is 1000; when coding in four figures – 10 000. Bases of an algorithm are stated in a natural language that allows to develop the software for exchange of information, using high-speed computer systems.
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