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The form is not restricted to two or three dimensions (Michael G.). —Preceding unsigned comment added by 134.60.73.71 (talk) 16:29, 22 November 2010 (UTC)[reply]
[Solved the problem on my own] —Preceding unsigned comment added by 134.60.73.71 (talk) 16:32, 22 November 2010 (UTC)[reply]