The Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.


Math Forum » Discussions » sci.math.* » sci.math

Topic: It is a very bad idea and nothing less than stupid to define 1/3
= 0.333...

Replies: 5   Last Post: Oct 4, 2017 3:15 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
bursejan@gmail.com

Posts: 5,169
Registered: 9/25/16
Re: It is a very bad idea and nothing less than stupid to define 1/3
= 0.333...

Posted: Oct 3, 2017 5:21 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Since \sum_{k=1}^n 9/(10^k) = 1 - 10^(-n),
and \sum_{k=1}^oo a(k) = lim n->oo \sum_{k=1}^n a(k)

The two are synonymous:

lim n->oo (1-10^(-n)) = \sum_{k=1}^{\infty} 9/(10^k)

https://en.wikipedia.org/wiki/Synonym

BTW: The following authors here on sci.math already
explained this two you like a dozen times:
- Dan
- Me
- Markus Klyver
- Zelos Malum
- Etc..

You, bird brain John Gabriel, probably qualify
for the most stupid human being on the planet.

Should we call the Guiness book of records?

Am Dienstag, 3. Oktober 2017 22:04:52 UTC+2 schrieb John Gabriel:
> > lim n->oo (1-10^(-n))
>
> No. 0.999... = \sum_{k=1}^{\infty} 9/(10^k)




Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2017. All Rights Reserved.