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φ (EN)
harply, nyşan

harply “φ”

φ, phi
  1. grek elipbiýiniň 21-nji harpy
    In the Greek word "φως" (light), the letter "φ" is the first character.

nyşan “φ”

φ
  1. (mathematikada) altyn kesiş, tebigatda we sungatda ýüze çykýan takmynan 1.618-e deň bolan aýratyn san.
    The ancient Greeks used φ to design buildings with pleasing proportions.
  2. (mathematikada) Euleriň totient funksiýasy, berlen san bilen umumy bölenleri bolmadyk sanlaryň sanyny hasaplaýan funksiýa.
    To find out how many numbers less than 10 don't share factors with 10, we calculate φ(10) and find it is 4.
  3. (fonetika boýunça) ses bogunlaryny ulanman, iki dodagyň arasynda howa üflenip çykarylýan sesi görkezmek üçin ulanylýan nyşan
    The sound represented by φ is found in some languages like Japanese.