Math Is Fun Forum

dvd84

Guest

step function

Hello, I'm trying to figure out a step function on positive integers, in detail:

f  :  N  -> {0,1}

f(x) =   1   if x>0
           0   if x=0

I'm having difficulties in writing this function, can someone help me please?

anonimnystefy

Real Member

From: Harlan's World

Registered: 2011-05-23

Posts: 16,049

Re: step function

Could you be more precise about what exactly you need to do?

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dvd84

Member

Registered: 2015-07-13

Posts: 2

Re: step function

Could you be more precise about what exactly you need to do?

Sorry I needed a formula for f(x),   I figured out it is the sign function https://en.wikipedia.org/wiki/Sign_function

Last edited by dvd84 (2015-07-13 11:59:17)