Why is the typewriter sequence named as such?

Asked Jun 13 '16 at 04:44

Active Jun 17 '16 at 13:05

Viewed 529 times

$$f_n := {\mathbb 1}_{\left[\dfrac{n-2^k}{2^k},\dfrac{n-2^k+1}{2^k}\right]}$$

Just curious, why is it called "typewriter" sequence?

edited Jun 17 '16 at 13:05

Watson

asked Jun 13 '16 at 04:44

yoyostein

4

Because the supports of the functions "move to the right" and then "reset" in the same way that the carriage of a typewriter moves to the right and then resets. – Ben Grossmann Jun 13 '16 at 04:48
2

A physical typewriter goes click-click-click to the right, one letter at a time, then bzzzzt all the way back to the left when you hit the carriage return. – vadim123 Jun 13 '16 at 04:48
@Omnomnomnom is it possible to represent this sequence of function on a paper ? because i am totally confused here. – TheStudent Jul 02 '20 at 05:41
@Grvsaini See this post – Ben Grossmann Jul 02 '20 at 07:03
@Omnomnomnom thankyou, for your answer. – TheStudent Jul 02 '20 at 08:47

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