σ (EN)

barua, ishara

barua “σ”

1. herufi ya kumi na nane ya alfabeti ya Kigiriki, sigma ndogo
   Jisajili ili kuona tafsiri za sentensi za mfano na ufafanuzi wa kila neno kwa lugha moja.

   In Greek language classes, students learn that σ is the lowercase form of sigma.

ishara “σ”

1. (hisabati) alama inayowakilisha upotofu wa kawaida katika takwimu
   The statistician calculated σ to understand how the data varied from the mean.
2. (fizikia) alama inayowakilisha upitishaji umeme
   The electrical conductivity σ increases with temperature in this material.
3. (fizikia) alama inayowakilisha eneo la msalaba wa sehemu.
   The scattering cross-section σ is crucial in nuclear physics experiments.