National Pi Day: History’s Great Mathematicians

Today is National Pi Day, and we want to celebrate by highlighting some of history’s most amazing mathematicians (in addition to eating a big slice of pie!).

Some cool facts about Pi:

  • It has been represented using the Greek letter “π” for the past 250 years.
  • It is a mathematical constant that’s special, unique, and significant in its own way.
  • It is the ratio of a circle’s circumference to its diameter.
  • It never ends or settles into a repeating pattern.
  • It is the most recognized mathematical constant.
  • Computing the value of Pi is a stress test for computers.

Five of history’s most interesting mathematicians:

DN-SC-84-05971Grace Hopper (aka “Amazing Grace”) was an American computer scientist and United States Navy rear admiral. As a child Hopper would dismantle household gadgets, specifically alarm clocks, to figure out how they worked. During WWII Hopper decided to take a leave of absence from Vassar where she was working as an associate professor of math and was sown into the U.S. Navy Reserve as a volunteer. A pioneer in her field, she worked at Harvard University for the navy and was one of the first programmers to work on a computer called Harvard Mark I that was used in the war effort. On top of it all, she invented the first compiler for a computer programming language.

 

williamplayfairWilliam Playfair was the founder of graphical methods of statistics, in other words charts and diagrams. He was a Sottish engineer and political economist who invented four types of diagrams: the line graph, the car chart, the pie chart, and the circle graph. Born during the Enlightenment – a Golden Age when the arts, sciences, industry, and commerce were all thriving – Playfair was involved in many different careers. He was an engineer, accountant, inventor, silversmith, merchant, investment broker, economist, publicist, land speculator, editor, journalist, the list goes on.

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Ada Lovelace is considered to be the world’s first computer programmer. She earned this title after working on one of the earliest mechanical general-purpose computers called the Analytical Engine. The notes she took on this project are recognized as the first algorithm intended to be carried out by a machine. This has earned her the title of “first computer programmer.” As a young child Lovelace showed signs of being highly influence by math and science, and her parents pushed her to pursue this talent.

 

 

 

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Isaac Newton is best known for having developed the theory of gravity and physics, but he also invented calculus (as did Gottfried Leibniz, who he had many disputes with over this topic during his life). This Englishman formulated laws of motion and universal gravitation using mathematical processes. Born on Christmas Day, Newton was known to be an independent person who never married. His work in science and math are some of the core foundations on which many other developments were made.

 

 

 

sofiamath

Sofia Kovalevskaya was the first major Russian female mathematician. She contributed major original advances to analysis, differential equations, and mechanics. She was the first woman to ever be appointed to full professorship in Northern Europe and was one of the first women to work for a scientific journal as an editor. Born in Moscow, Kovalevskaya studied in Germany by auditing courses at a German university. For a long time she tried to build up her career but because she was a woman she was unable to. Finally she was accepted as a professor in Stockholm, Sweden.

 

 

Which leaders in math and science inspire you?

Image: Flickr, Grace Hopper, William Playfair, Ada LovelaceIsaac Newton, Sofia Kovalevskaya