Visitor # ( since April 10th, 1997).

Image this interesting game. Given 9 numbers (1,2,3,4,5,6,7,8,9), can you make a number such as 1997 (what year are we in, by the way?) by using these numbers and + - * operations without change their positions? Also how many ways can we do that?

Well, this applet can tell you all that.

Don't believe me? Just put 9 in the column corresponding to "Max Number" and 1997 in "Target Number" column. Select "Solution" and click on "Validate" to see what it says!

Well, you can change the two integers. But the "Max Number" should not be too big. I'd say it should be around 10 if you don't want to spend all your time waiting for the answer. There is no restriction on "Target Number".

Also you can select "Eraser" and click on "Validate" to eraser some part of the text area. Good luck!

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