Brian Reay wrote:

Steve Walker wrote:
On 07/12/2019 20:08, Bill Wright wrote:
On 07/12/2019 16:23, Andy Bennet wrote:
On 07/12/2019 13:14, ZW wrote:
replying to Bruce, ZW wrote:
3.1415926535897932384626433832795

3.141592653589 etc

My tape measure doesn't go to 64,452 decimal places, so I always use
three and a seventh.

Bill

355/113

SteveW



You can't express Pi like that- one integer divided by another integer.

Only Rational Numbers can be expressed like that.

Rational Numbers are either terminating decimals or recurring ones.

Pi doesn't terminate nor does it recur, it is an Irrational Number.

He knows that. It is an engineering approximation, and easier to
remember than the equivalent precision in actual digits.


--

Roger Hayter