x=0-->f(0+y)=f(0)f(y)-->f(y)=f(0)f(y)--f(x)>0-->f(0)=1
所有跟帖:
• Very good, f(y)=f(0)f(y) =>f(0)=f(y)/f(y) and f(y)>0 => f(0)=1 -flagsix- ♂ (0 bytes) () 01/24/2013 postreply 07:08:26
• Very good, f(y)=f(0)f(y) =>f(0)=f(y)/f(y) and f(y)>0 => f(0)=1 -flagsix- ♂ (0 bytes) () 01/24/2013 postreply 07:08:26