Hello.(adsbygoogle = window.adsbygoogle || []).push({});

I'm stuck on calculating DTFT of 1.

DTFT formula is:

so dtft of 1 is:

1) in case of w=1, sum becomes:

doesn't it diverge?

2) in case of w no 1, how the hell should that sum be calculated?

thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Dtft of 1

**Physics Forums | Science Articles, Homework Help, Discussion**