2.1
/2, .112/.
| , ͷ | |
| , / | |
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, 
| |
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2.2
/2, . 128/.
| , ͷ | |
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| (0 , 1 , 2 , 3 , 4 , 5 ) | |
2.3
/2, . 180/.
| , ͷ | |
| , / | |
| , | |
| , /(2×) |
2.4
/2, . 232/, /2, . 235/.
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2.5
/2, .250/.
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, . /. /.
, . 3 4 ( ).
1 .., .. : . . . . 4- . . . .: , 1985. 416 .
2 .. : . ... . 5- ., . .: , 1991. 383 .
3 : . /.. . .: , 1979. 351 .
