B Is 0.99.. Equal 1

  • Thread starter Astro021
  • Start date
I want to see a proof why 0.999999... Is not equal 1 or why is it
 

PeroK

Science Advisor
Homework Helper
Insights Author
Gold Member
2018 Award
8,778
3,146
I want to see a proof why 0.999999... Is not equal 1 or why is it
There must be dozens of threads on here covering this.

The short answer is that ##0.999 \dots## is defined as an infinite geometric series, whose sum equals ##1##.
 
32,369
8,348
The internet is full of proofs that it is 1.

A couple of older threads here:
1, 2, 3, 4, ...

No need to repeat this again. I closed the thread.
 

Want to reply to this thread?

"Is 0.99.. Equal 1" You must log in or register to reply here.

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving

Top Threads

Top