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σ (EN)
letter, simbool

letter “σ”

σ, sigma
  1. die agtiende letter van die Griekse alfabet, kleinletter sigma
    In Greek language classes, students learn that σ is the lowercase form of sigma.

simbool “σ”

σ
  1. ('n simbool wat standaardafwyking in statistiek verteenwoordig)
    The statistician calculated σ to understand how the data varied from the mean.
  2. (physika) 'n simbool wat elektriese geleidingsvermoë verteenwoordig
    The electrical conductivity σ increases with temperature in this material.
  3. (physika) 'n simbool wat die deursnee-area voorstel
    The scattering cross-section σ is crucial in nuclear physics experiments.