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Sortable table Abbreviation Meaning Δ: diagnosis; change: ΔΔ: differential diagnosis (the list of possible diagnoses, and the effort to narrow that list) +ve: positive (as in the result of a test)
Delta ( / ˈdɛltə /; [1] uppercase Δ, lowercase δ; Greek: δέλτα, délta, [ˈðelta]) [2] is the fourth letter of the Greek alphabet. In the system of Greek numerals it has a value of 4. It was derived from the Phoenician letter dalet 𐤃. [3] Letters that come from delta include Latin D and Cyrillic Д .
DELTA is an English language teaching (ELT) qualification for experienced Teachers of English as a Foreign Language (TEFL) and Teachers of English to Speakers of Other Languages (TESOL). It is provided by Cambridge English Language Assessment through authorised Cambridge English Teaching Qualification centres and can be taken either full-time ...
Mathematics. Δ, a difference of state between two before and after state schemas in the Z notation. δ {\displaystyle \delta } , the first Feigenbaum constant. Delta connective, a unary connective in t-norm fuzzy logics. Delta method for approximating the distribution of a function.
Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.
This writing system, unrelated to the Greek alphabet, last appeared in the thirteenth century BC. In the late ninth century BC or early eighth century BC, the Greek alphabet emerged. [2] The period between the use of the two writing systems, during which no Greek texts are attested, is known as the Greek Dark Ages.
A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...
t. e. In thermodynamics, the Gibbs free energy (or Gibbs energy as the recommended name; symbol ) is a thermodynamic potential that can be used to calculate the maximum amount of work, other than pressure-volume work, that may be performed by a thermodynamically closed system at constant temperature and pressure.