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ξ (EN)
črka, simbol

črka “ξ”

ξ, xi
  1. 14. črka grške abecede
    In Greek, the letter ξ is the 14th letter of the alphabet, often used in mathematics and science.

simbol “ξ”

ξ
  1. (v matematiki) spremenljivka ali neznana količina, ki se pogosto uporablja v verjetnosti in statistiki
    In this equation, ξ represents an unknown parameter we need to estimate.
  2. (iz fizike) količnik dušenja nihajočega sistema, ki označuje, kako nihanja po motnji zamirajo.
    A damping ratio ξ less than one indicates an underdamped system that will oscillate.
  3. (ob kemijskem inženirstvu) obseg reakcije, ki meri, kako daleč je kemijska reakcija napredovala
    By measuring the change in concentration, we can calculate the extent of reaction ξ.