Math game

來源: wsj168 於 2015-10-10 20:14:17 [] [舊帖] [給我悄悄話] 閱讀數 : (104 bytes)

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

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• tan(1/2)+tan(2/1) = -1.638737. You may mess up with atan(m1/m2)+ -科普閑談- ♂ 給 科普閑談 發送悄悄話 (0 bytes) () 10/10/2015 postreply 21:09:30

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