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Answers and rating deltas for

How do you check to see if input is numerical, and if it's not, ask for one?

Author Votes Δ
TNT 1 +3.90
James Westman 0 -1.19
Steve 0 -1.05
Secondo 0 -0.74
Dima 0 -0.92
Last visited: Apr 28, 2015, 8:32:45 PM