A Brief History of the Letter 'X,' From Algebra to X-Mas to Elon

Description

A math historian explores how "x" came to stand in for an unknown quantity

A literal translation of the Ephrata Christmas greeting [of 1769

X marks the unknown in algebra – but X's origins are a math mystery

The Mysterious Allure of a Mogul's Favorite Letter - WSJ

Articles tagged as Ancient Greece

Articles tagged as Christmas

Articles by REPRINT AUTHOR PLACEHOLDER

Why is Elon Musk obsessed with the letter X?

Articles tagged as Ancient Civilizations

X marks the unknown in algebra – but its origins are truly a math

How Did X Become the Unknown (and so much else)?

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