sigma -sigm- experimental gismu

x₁ is the standard variation of/in data set/distribution x₂; x₁ is the quantified (in)accuracy of the results x₂ given by some observation or measurement (procedure), calculated from/by standard x₃

Technically, there really is only one possible standard deviation, but in practice, it is often approximate via some means x3 (such as assuming that the distribution is Gaussian, even if it actually is only a finite data sample x2).

lensisku

In definition:

si'i: trinary mathematical operator: [sigma summation of a using variable b over range c].
snisimsumji: x₁ is the sigma summation of expression x₂ with variable x₃ over domain x₄.

In notes:

gau'a (exp!): mekso (no-more-than-4-ary) operator: Gaussian function f(x, a, b, c) = c e^-\frac(x-a).
se'au (exp!): mathematical quinary operator; big operator: left sequence notation/converter - operator a, sequence b defined as a function on index/argument/variable/parameter c, in set d, under ordering e
sezborsigmyfrica: x₁ (data-set, sequence, list) is heteroskedastic by standard x₂.
sezborsigmysmi: x₁ (data-set, sequence, list) is homoskedastic by standard x₂.
soi'auroi (comp!): almost never/nowhere (default: time sense)
zo'u'e: Generalized prenex/topic separator/joiner; such that …