Math and Science
In statistics, the term chi-squared or has various uses, including the chi-squared distribution, the chi-squared test, and chi-squared target models.
In algebraic topology, Chi is used to represent the Euler characteristic of a surface.
In neurology, the optic chiasm is named for the letter Chi because of its Χ-shape.
In chemistry, the mole fraction and electronegativity may be denoted by the lowercase .
In rhetoric, both chiastic structure (a literary device) and the figure of speech Chiasmus derive from their names from the shape of the letter Chi.
In engineering, chi is used as a symbol for the reduction factor of relevant buckling loads in the EN 1993, a European Standard for the design of steel structures.
Read more about this topic: Chi (letter)
Famous quotes containing the word science:
“It is not too much to say that next after the passion to learn there is no quality so indispensable to the successful prosecution of science as imagination. Find me a people whose early medicine is not mixed up with magic and incantations, and I will find you a people devoid of all scientific ability.”
—Charles Sanders Peirce (1839–1914)