(adsbygoogle = window.adsbygoogle || []).push({}); pi miscalculated or not irrational???

I know that computers have calculated thousands of digits of pi, but does this mean that pi is an irrational number? How can we be so sure that it is irrational? And I have one more question. The circles we see in real life are not perfect circles. Does this mean that pi might have been miscalculated?

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

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

# Pi miscalculated or not irrational?

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