(Added a riddle)
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* Come up with an algorithm that counts down from a number but does not employ the use of a minus sign or any form of subtraction. There are several [http://stackoverflow.com/questions/763832/programming-riddle-counting-down-without-subtracting solutions] to this problem.
 
* Come up with an algorithm that counts down from a number but does not employ the use of a minus sign or any form of subtraction. There are several [http://stackoverflow.com/questions/763832/programming-riddle-counting-down-without-subtracting solutions] to this problem.
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How can you add eight 8's to get the number 1,000? (only use addition)
  
 
[[Category:MA375Spring2010Walther]]
 
[[Category:MA375Spring2010Walther]]

Revision as of 13:41, 26 January 2010

Post a mathematical riddle.

  • Come up with an algorithm that counts down from a number but does not employ the use of a minus sign or any form of subtraction. There are several solutions to this problem.


How can you add eight 8's to get the number 1,000? (only use addition)

Alumni Liaison

Ph.D. on Applied Mathematics in Aug 2007. Involved on applications of image super-resolution to electron microscopy

Francisco Blanco-Silva