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Earned on 4 Jun 2013 for solving Problem 1. Times 2 - START HERE.
Earned on 19 Jun 2013 for liking Problem 32. Most nonzero elements in row.
Earned on 8 Jul 2013 for commenting on Problem 381. Angle between two vectors.
Earned on 2 Jul 2013 for creating Problem 1693. Calculate distance travelled when given radius....
Earned on 27 Sep 2014 for first solving Problem 1708. calculate RMS voltage.
Earned on 26 Mar 2014 for solving all the problems in CUP Challenge.
Earned on 27 Sep 2014 for submitting the best solution Solution 278360.
Earned 6 hours and 35 minutes ago for having 50 or more solvers for Problem 1707. Negative matrix.
Solve all the problems in Tiles Challenge problem group.
Solve all the problems in ASEE Challenge problem group.
Solve all the problems in Cody Challenge problem group.
Earned on 22 Jul 2013 for creating 10 problems.
Solve 500 problems.
Solve all the problems in Modeling and Simulation Challenge problem group.
Solve all the problems in Magic Numbers problem group.
Must receive 25 total likes for the problems you created.
Must receive 50 total likes for the solutions you submitted.
Must receive 10 likes for a solution you submitted.
Must receive 10 likes for a problem you created.
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