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Glite Dictionary
🔤 Greek letter 🧑‍💼 Independent person
sigma

sigma

4 7.3
The eighteenth letter of the Greek alphabet used in math and science
  • noun
  • /ˈsɪɡmə/
translation icon : sigma
  • The equation for stress in materials uses the symbol sigma to represent the normal stress acting on a surface.
  • sigma dispersion
  • parameter sigma
  • stability parameter sigma

Examples

  • And the instantaneous principal stresses, sigma 1 and sigma 2, are given by:

    Academic text (1995)

  • The linear elastic stress-strain relationship, sigma = Eepsilon, is inadequate in situations where plastic strains are present.

    Academic text (1995)

  • And this is what the five Sigma means.

  • This Sigma prime S Sigma prime S bar, right?

  • It's a regular old Sigma bond straight on, right?

  • U is equal to E to the Sigma times the square root of time.

  • If T > - mu + sigma, then the grade is A.

    Academic text (1991)

  • The root cause of the problem was three-sigma process modeling.

    Academic text (1999)

  • The values of sigma y and sigma z depend on x, the downwind distance from the source.

    Academic text (1993)

  • The mean and standard deviation of sigma r for each condition and group are shown in Figures 4a and 4b.

    Academic text (1995)

Compounds

sigma male
  • Slang
9.9

A man who is independent and does not follow social rules

Surface Forms

sigma singular
sigmas plural

Etymology

Sigma is the Greek letter for the 's' sound, written Σ in capitals and σ or ς in small form; in math the sign Σ shows a 'sum' or adding many numbers, so sigma often means summation.