R C + C = C R = 1 N (R-1) (N-1) R (N-1) N
10 + 7 4913 3 2 3 10 300 1000 2 a Λ = 3913 3agΛ 3 10 7 = 210 2 2 b Λ 7 = 49 3a2 + 3ab + b 2 2 2 Λ 559 3913Λ ( 3a + 3ab + b ) b 3 4913 = 17
223 22 71 7 3 10 < π < 3 1 71 7 a 2n = 2R 2 R 4R 2 a 2 n 355 1585 = 3.1415929 113
10 = 3.1623 10 500 18 10 a = 2R R 4R a 2 2 2 2n n S < A < S + ( S S ) 2N 2N 2N N
157 192 = 3.14 50 22 96 < /PGN0056.TXT / PGN > 3.1428 7 3927 = 3.14159 1250 22 7 = 3.142857 355 0.0012 113
355 113 π 1 1 1 1 = 1+ + + + Λ + + Λ 8 3 2 5 2 7 2 ( 2n 1) 2 π 3 1 1 1 1 1 = 1 3 + 3 + 3 + + n ( ) Λ 3 + Λ 32 3 5 7 ( 2n 1)
1 2 1 4 1 8
x xx = 1 x + x = b b b 2 2 2 ( b ) b ( b 2 2 1 x = ± ) 1 2 2 2