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:
““What we know, is a point to what we do not know.” Open any recent journal of science, and weigh the problems suggested concerning Light, Heat, Electricity, Magnetism, Physiology, Geology, and judge whether the interest of natural science is likely to be soon exhausted.”
—Ralph Waldo Emerson (1803–1882)