Eta vs X - What's the difference?
eta | x |
The seventh letter of the Modern Greek alphabet, the eighth in Old Greek.
(particle) A kind of electrically neutral meson having zero spin and isospin.
A social outcast in Japan who is subjected to menial work, making up a class or caste of such people.
The twenty-fourth letter of the .
Image:Latin X.png, Capital and lowercase versions of X , in normal and italic type
Image:Fraktur letter X.png, Uppercase and lowercase X in Fraktur
Roman numerals
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