It's a rectangular function--not a "step"!

Oh, you even forgot the most popular FT pair.

:)

所有跟帖： 

• Wikipedia "rectangular function, the next simplest step function -weston- ♀ (0 bytes) () 03/07/2015 postreply 11:40:53

• hoho, you even need Wiki for that! :) -career- ♂ (168 bytes) () 03/07/2015 postreply 11:46:47

• For your conenience only, since you had idea step functions cove -weston- ♀ (0 bytes) () 03/07/2015 postreply 11:57:00

• I have the rectangular. it is you who "mis"-"step":))) -career- ♂ (567 bytes) () 03/07/2015 postreply 11:59:34

• 你这是 "白马非马" 的现代版 -weston- ♀ (0 bytes) () 03/07/2015 postreply 12:03:16

• Stay in math,pls. :) -career- ♂ (0 bytes) () 03/07/2015 postreply 12:19:30