回复：Another method

What is the expression of S(x)?

Thanks.

所有跟帖： 

• 回复：回复：Another method -sxcxm- ♂ (747 bytes) () 04/02/2008 postreply 17:22:05

• 回复：回复：回复：Another method -yma16- ♂ (291 bytes) () 04/03/2008 postreply 09:02:18

• 回复：回复：Another method(Picture) (图) -sxcxm- ♂ (68 bytes) () 04/02/2008 postreply 17:33:10

• This is also a great solution.... -乱弹- ♂ (80 bytes) () 04/02/2008 postreply 20:33:22

• 回复：回复：Another method (图) -sxcxm- ♂ (79 bytes) () 04/04/2008 postreply 14:46:07

• My idea is (图) -sxcxm- ♂ (68 bytes) () 04/04/2008 postreply 14:48:15