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检验一个数学“黑洞”小注贵刊于1994年1期42页刊出拙文,文中提到“任何一个四位数,将它的数码重新排列成最大数和最小数,从最大数中减去最小数,所得的差是一个新的四位数文中所说新的四位数,包括首位数是零的四位数.对三位数也作相同的理解.文中已举出下面...
Test a mathematical “black hole” small note. Your article was published on page 42 of the first issue of 1994. It states “Any four-digit number, rearranges its number to its maximum and minimum number, and subtracts it from the maximum number. The smallest number, the resulting difference is a new four-digit number in the new four-digit text, including the four digits where the first digit is zero. The same applies to the three-digit number. The text has cited below...