Math game

来源: wsj168 于 2015-10-10 20:14:17 [] [旧帖] [给我悄悄话] 阅读数 : (104 bytes)

This is nonsense. Tan(m1/m2) and tan(m2/m1) always make the sum of the two angles 180 degree.

所有跟帖： 

• tan(1/2)+tan(2/1) = -1.638737. You may mess up with atan(m1/m2)+ -科普闲谈- ♂ 给 科普闲谈 发送悄悄话 (0 bytes) () 10/10/2015 postreply 21:09:30

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