Balanced ternary numeral system (trinary) — numeral system on base 3 with values -1, 0, +1 (for notation the following symbols are used: +, 0, -). This is most eficient numeral system.
The general feature of balanced ternary system is sign of number which included in alphabet of this system:
- the sign of number determinated by the same;
- simple mathematic operations;
- simple number round algorithm.
Using of balanced ternary system and trinary logic in computer systems is very efficient versus binary system. The first ternary computer "Setun" was very simple, effective and costless. Also efficient of trinary logic was provided in DSSP.