Table of Contents

## Who accurately calculated pi?

In 1665, English mathematician and physicist Isaac Newton used infinite series to compute pi to 15 digits using calculus he and German mathematician Gottfried Wilhelm Leibniz discovered.

**How did Archimedes discovered pi?**

Archimedes’ method finds an approximation of pi by determining the length of the perimeter of a polygon inscribed within a circle (which is less than the circumference of the circle) and the perimeter of a polygon circumscribed outside a circle (which is greater than the circumference).

### How did Pythagoras calculate pi?

Rounded out, it is equal to approximately 3.14. It wasn’t until the ancient Greek mathematician Archimedes approximated the area of a circle by using the Pythagorean Theorem that pi was first calculated. He determined pi was equal to a number between 3 1/7 (3.14285714) and 3 10/71 (3.14084507).

**Who was the first mathematician to calculate the value of Pi?**

The first mathematician to calculate pi with reasonable accuracy was Archimedes, around 250 B.C. Using the formula: A = pi r^2 for the area of a circle, he approximated pi by considering regular polygons with many sides inscribed in and circumscribed around a circle.

#### Who invented formula and the value of Pi?

Ancient Greek mathematician Archimedes of Syracuse, who lived in the third century B.C. and is considered the greatest mathematician of the ancient world, is credited with doing the first calculation of pi.

**How many decimals of Pi do we really need?**

In fact, to calculate this circumference to a higher degree of accuracy, you would need about 40 decimals of pi. However, if you compare the huge vastness of the universe to the amount of decimal places of pi needed to calculate it, we do not indeed need to use many digits of pi to cover such a huge range.

## Who was the first person to use Pi and when?

Later, in 1707, Welsh mathematician William Jones was the first to use the Greek letter pi (π) to denote the constant ratio, though it wasn’t until 1737 that Swiss mathematician and physicist Leonhard Euler popularized the use of the symbol. The π symbol was taken from the Greek word for “perimeter.”.