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#Sigma phi epsilon wiki code#
#Sigma phi epsilon wiki free#

In planetary science, ε denotes the axial tilt.Epsilon is the name for the most distant and most visible ring of Uranus.it stands for the fifth-brightest star in a constellation (see Bayer designation).In automata theory, it shows a transition that involves no shifting of an input symbol.

it can also indicate the strain of a material (a ratio of extensions).

#Sigma phi epsilon wiki free#

it indicates the permittivity of a medium with the subscript 0 (ε 0) it is the permittivity of free space.

the machine epsilon indicates the upper bound on the relative error due to rounding in floating point arithmetic.

it often represents the empty string, though different writers use a variety of other symbols for the empty string as well usually the lower-case Greek letter lambda (λ).

in group theory it is used as the idempotent group when e is in use as a variable name.

in numerical analysis and statistics it is used as the error term.

While in normal typography these are just alternative font variants, they may have different meanings as mathematical symbols: computer systems therefore offer distinct encodings for them. The other, also known as lunate or uncial epsilon and inherited from earlier uncial writing, looks like a semicircle crossed by a horizontal bar: it is encoded U+03F5 ϵ GREEK LUNATE EPSILON SYMBOL. One, the most common in modern typography and inherited from medieval minuscule, looks like a reversed number " 3" and is encoded U+03B5 ε GREEK SMALL LETTER EPSILON. The lowercase version has two typographical variants, both inherited from medieval Greek handwriting.

#Sigma phi epsilon wiki code#

The uppercase form of epsilon is identical to Latin E but has its own code point in Unicode: U+0395 Ε GREEK CAPITAL LETTER EPSILON. The name of the letter was originally εἶ ( Ancient Greek: ), but it was later changed to ἒ ψιλόν ( e psilon 'simple e') in the Middle Ages to distinguish the letter from the digraph αι, a former diphthong that had come to be pronounced the same as epsilon. Letters that arose from epsilon include the Roman E, Ë and Ɛ, and Cyrillic Е, È, Ё, Є and Э. It was derived from the Phoenician letter He. In the system of Greek numerals it also has the value five. Epsilon ( / ˈ ɛ p s ɪ l ɒ n/, UK also / ɛ p ˈ s aɪ l ə n/ uppercase Ε, lowercase ε or lunate ϵ Greek: έψιλον) is the fifth letter of the Greek alphabet, corresponding phonetically to a mid front unrounded vowel IPA: or IPA.