Greek Letter Khi (Χι - Χ)


The Greeks were the first to invent this letter. The deep-throated sound of this letter is not used in English.

"Χ" Letter in mathematics and in science

χ represents:

  • the chi distribution in statistics (X2 is the more frequently encountered chi-square distribution)
  • the chromatic number of a graph in graph theory
  • the Euler characteristic in algebraic topology
  • a variable in algebraic equations
  • electronegativity in the periodic table
  • the Rabi frequency
  • the Fourier transform of a linear response function

Greek words with "χ"

χώμα, χαρτί

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