Name: 泰瑞．摩爾：為什麼 "X" 代表未知？
Uploaded: 2012-06-06T15:00:59Z
Duration: 3 min 40 s
Description: 為什麼 "X" 是未知的象徵？泰瑞．摩爾在他簡短有趣的演講中告訴你來龍去脈。

泰瑞．摩爾: 泰瑞．摩爾：為什麼 "X" 代表未知？

泰瑞．摩爾：為什麼 "X" 代表未知？

為什麼 "X" 是未知的象徵？泰瑞．摩爾在他簡短有趣的演講中告訴你來龍去脈。

The symbol 'x' represents the unknown because medieval translators struggled to capture Arabic sounds in their own languages. When Arabic mathematical texts reached Spain, the word 'shayun'—meaning 'something' or 'unknown'—could not be directly translated, so scholars substituted Greek and Latin letters. Over centuries, this workaround turned a simple letter into a global icon of mystery, now seen everywhere from math class to pop culture.