Changes related to "Tangent developable"
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8 December 2013
6 December 2013
- (diff | hist) . . m Leonhard Euler; 11:47 . . (-24) . . Philip Trueman (Reverted edits by 220.127.116.11 (talk) to last version by Philip Trueman)
- (diff | hist) . . Leonhard Euler; 11:47 . . (+24) . . 18.104.22.168 (→Early years)