Sigma vs Sigmoid - What's the difference?
sigma | sigmoid |
The name for the eighteenth letter of the Classical]] and Modern Greek, the twentieth letter of Old and [[Ancient Greek, Ancient.
(mathematics) The symbol ? , used to indicate summation of a set or series.
(statistics) The symbol ? , used to indicate one standard deviation from the mean, particularly in a normal distribution.
* 2011 , Paul Rincon, (bbc.co.uk)
(geometry) Curved in two directions, like the letter "S", or the Greek (sigma).
#Having a serpentine shape; resembling S or ?
# (mathematics) Exhibiting logistic growth; having a graph that accelerates until it reaches a carrying capacity
(geometry, archaic) Semi-circular, like the lunar sigma (similar to English C).
(anatomy) Relating to the sigmoid flexure of the large intestine.
(mathematics) A function having a graph whose shape is sigmoid. See and Mathworld http://mathworld.wolfram.com/SigmoidFunction.html.
In mathematics terms the difference between sigma and sigmoid
is that sigma is the symbol Σ, used to indicate summation of a set or series while sigmoid is a function having a graph whose shape is sigmoid. See Wikipedia and Mathworld.As nouns the difference between sigma and sigmoid
is that sigma is the name for the eighteenth letter of the Classical and Modern Greek, the twentieth letter of Old and Ancient while sigmoid is a function having a graph whose shape is sigmoid. See Wikipedia and Mathworld.As an adjective sigmoid is
curved in two directions, like the letter "S", or the Greek ς (sigma).sigma
English
Noun
(en noun)LHC: Higgs boson 'may have been glimpsed'
- None of the spikes seen by the experiments is at much more than the "two sigma" level of certainty.
A level of "five sigma" is required to claim a discovery, meaning there is less than a one in a million chance the data spike is down to a statistical fluke.