Why is 'x' the unknown?

Terry Moore · TED

About

Why is 'x' the symbol for an unknown? In this short and funny talk, Terry Moore gives the surprising answer.

Institution: TED
Department: TED2012
Speaker: Terry Moore
Year: 2012
Level: For everyone
Language: English
Subjects: Mathematics, History, Languages and linguistics
Source: TED
Licence: CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions. TED's terms
Attribution: TED Talks are licensed by TED under Creative Commons BY-NC-ND 4.0 International and are shown here in TED's own player, as TED's usage policy asks.
Who can watch: TED gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed