WebDevelopersNotes logo

home-icon Home / Events on 5 March / William Oughtred Birthday

William Oughtred Birthday

William Oughtred Birthday - 5 March 1574

William Oughtred was born on 5 March, 1574

English mathematician who is credited to have invented the slide rule for multiplication and division. He was also the first to use ‘x’ as the symbol for multiplication and abbreviating sine and cosine to "sin" and "cos".

Oughtred was also the first to propose using the sixteenth letter of the Greek alphabet, π, as the symbol for pi, the ratio of the circumference of a circle to its diameter. FYI, Pi Day is celebrated on 14th March which is also the birthday of Albert Einstein.

Your comments
Star icon IMPORTANT Have a question / problem? Click here to ask an expert.

Why we hate Internet Explorer?

Sponsored Links


How do I view a deleted web page?
Is there a way to view a deleted web page - one that is no longer available? Yes there is and the solution is quite simple. [more...]


During development, Netscape Navigator browser was known as Mozilla. It stood for "Mosaic-Killer". That's because Netscape was being developed by the creators of NCSA Mosaic, the browser that popularised the web. NCSA (National Center for Supercomputing Applications) considered Mosaic their property and didn't appreciate the idea of the original programmers leaving their organisation to join/found a company. Jim Clark, co-founder of Netscape Communications and the main force behind it, made it clear to everyone that Netscape Navigator is to be developed from scratch and not a single line of Mosaic's code is to be used. The Mozilla name has now been taken up by the open source successor of the company. The irony is that Netscape was intended to be free only for non-commercial, academic and non-profit organisations. [more...]

We use cookies to give you the best possible website experience. By using WebDevelopersNotes.com, you agree to our Privacy Policy