论文部分内容阅读
18世纪德国大数学家高斯说:“整数是数学的女王。”而9就是女王皇冠上一颗闪着迷人光彩的珍珠。在从0到9这10个阿拉伯数码中,9最大。仅用3个9就能组成一个非常非常大的数。9的9次方的9次方,它有369693100位,如果全部写出来,可长达1200千米。9有许多奇妙的性质:凡是9的倍数,它的各位数字之和。必然是9或9的倍数。由9组成的自然数平方,有规律可循:
Eighteenth-century German mathematician Gauss said: “The whole number is the queen of mathematics.” And 9 is the crown of the Queen with a shimmering glamorous pearl. Of the 10 Arabic numerals from 0 to 9, 9 are the largest. Only 3 9 can form a very, very large number. The 9th power of 9, which has 369693100 bits, can be as long as 1200 kilometers if written out. There are many wonderful properties of 9: all multiples of 9, the sum of its figures. Must be a multiple of 9 or 9. Natural square composed of 9 square, a rule to follow: