large combinations calculator(大数排列组合计算器)

这个计算器是计算C(n,r)值的。 它能够快速计算出很大很大的n和很大的r的值。 比如 C(1000000,100)的值多少？ 下面看看结果： The Value R =: 100 The Value N =: 100,000,0 The Value C(n,r) = 106,621,924,285,106,201,287,451,825,038,562,207,162,667,291,115,250,807,231,138,436,050,033,662,565, 128,461,577,069,893,007,400,408,832,321,251,568,497,238,439,932,140,446,325,755,370,965,466,641,195, 767,816,552,902,208,943,845,877,075,718,358,356,661,181,350,791,716,785,335,491,343,911,367,725,552, 965,843,373,005,217,464,604,268,074,615,501,493,580,306,301,333,740,424,239,274,035,545,865,236,910, 680,072,670,693,715,212,099,023,702,191,415,528,254,475,104,994,069,540,849,260,162,799,814,361,834, 050,912,071,796,659,748,280,824,079,114,567,738,202,249,960,747,145,186,667,035,942,012,16 The number of digits is 443 十分漂亮的计算，它有443位十进制。