January 21st, 2010, 10:55 AM  #1 
Newbie Joined: Jan 2010 Posts: 1 Thanks: 0  math problems
hi! me and some friends at university made a math problems database. We invite you to add your problems and solutions to share them. It's free to join, go to www.mathworld.ca. thank you! 
January 21st, 2010, 06:41 PM  #2 
Senior Member Joined: Jan 2009 From: Japan Posts: 192 Thanks: 0  Re: math problems
Since you're charging a subscription fee because, in part, "Posting every question and every answers takes a lot of time," will you be paying contributors?


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