Is i - i 0?

how do we know that e^pi*i=0?

what would a sigma notation with an upper limit of i look like?

Is my "take this with a grain of salt" topic dead?

Three derivations of Euler’s formula here:

https://mathvault.ca/euler-formula/

1 hour ago, grayson said:

Is i - i 0?

Yes.

 

1 hour ago, grayson said:

how do we know that e^pi*i=0?

It is not so.

 

1 hour ago, grayson said:

what would a sigma notation with an upper limit of i look like?

It does not make sense.

 

1 hour ago, grayson said:

Is my "take this with a grain of salt" topic dead?

IMO, it was dead on arrival.

13 minutes ago, Genady said:

It is not so.

Honest mistake. Kept seeing the e^pi*i +1 = 0 and mixed it up