Useless Data About Pi

Wikipedia has this to say about the number Pi:

The decimal representation of π truncated to 50 decimal places is:

π = 3.14159265358979323846264338327950288419716939937510…

Various online web sites provide π to many more digits. While the decimal representation of π has been computed to more than a trillion (1012) digits, elementary applications, such as estimating the circumference of a circle, will rarely require more than a dozen decimal places. For example, the decimal representation of π truncated to 11 decimal places is good enough to estimate the circumference of any circle that fits inside the Earth with an error of less than one millimetre, and the decimal representation of π truncated to 39 decimal places is sufficient to estimate the circumference of any circle that fits in the observable universe with precision comparable to the radius of a hydrogen atom.

It’s easy to forget the true magnitude of exponentials.

Compound interest, such as on national debt, also has to be carefully watched…

But sadly, there will always be those who do not understand basic math, and who refuse to try.