## Who invented Pi Day?

Larry Shaw

**Is Pi a perfect circle?**

Pi is one of those.” Why is pi so interesting? For one thing, pi describes a perfect circle, and thus is included in any formula that describes a circle or some kind of repetition, from a heart beat to the Earth’s orbit around the sun.

**Who is known as the father of mathematics?**

Archimedes is known as the Father Of Mathematics. He lived between 287 BC – 212 BC. Syracuse, the Greek island of Sicily was his birthplace.

### Is Pi related to Fibonacci?

One fascinating mathematical pattern that shows up in unexpected places is the Fibonacci sequence. Each subsequent number in the Fibonacci sequence is the sum of the previous two numbers. Pi (or π) is another example of a compelling connection between mathematics and the physical world.

**What is a good pi%?**

If the rate is 94% or less than it, the person needs to be treated quickly. Less than 90% of oxygen saturation is a clinical emergency. The normal perfusion index (PI) ranges from 0.02% to 20% showing weak to strong pulse strength.

**Can humans draw a perfect circle?**

Mathematically speaking, there is no such thing as a perfect circle. That, however, hardly matters with drawing—in most cases, you just need to be close enough to be believable. The fact is, you can get pretty darn close with a certain amount of practice.

#### Where can you find pi in nature?

Pi appears in every circle, including those found in the natural world. Pi, also written as the symbol π, is the ratio of a circle’s circumference (distance around a circle) to its diameter (distance across a circle passing through the center).

**Who holds the current title for most digits of pi?**

Lu Chao

**Are there any patterns in pi?**

We have known since the 18th century that we will never be able to calculate all the digits of pi because it is an irrational number, one that continues forever without any repeating pattern. But, despite the endless string of unpredictable digits that make up pi, it’s not what we call a truly random number.

## Is every number combination in pi?

Pi is an infinite, non-repeating decimal – meaning that every possible number combination exists somewhere in pi.

**Do circles actually exist?**

To the human eye, circles and spheres are abundant in nature and in our universe. They can occur naturally — in planets, stars, celestial bodies, tree rings, rain drops — or they can be man-made — such as traffic roundabouts, buttons, volleyballs, pizza.