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  2. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    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 ...

  3. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    the golden ratio 1.618... in mathematics, art, and architecture [24] Euler's totient function in number theory [25] the argument of a complex number in mathematics; the value of a plane angle in physics and mathematics; the angle to the z axis in spherical coordinates (mathematics) epoch or phase difference between two waves or vectors

  4. Notation in probability and statistics - Wikipedia

    en.wikipedia.org/wiki/Notation_in_probability...

    Random variables are usually written in upper case Roman letters, such as or and so on. Random variables, in this context, usually refer to something in words, such as "the height of a subject" for a continuous variable, or "the number of cars in the school car park" for a discrete variable, or "the colour of the next bicycle" for a categorical variable.

  5. ΔT - Wikipedia

    en.wikipedia.org/wiki/ΔT

    Download as PDF; Printable version; ... The symbols Δt and ΔT (spoken as "delta T") are commonly used in a variety ... ∂ for the mathematical symbol used in the ...

  6. Dirac measure - Wikipedia

    en.wikipedia.org/wiki/Dirac_measure

    We can also say that the measure is a single atom at x; however, treating the Dirac measure as an atomic measure is not correct when we consider the sequential definition of Dirac delta, as the limit of a delta sequence [dubious – discuss]. The Dirac measures are the extreme points of the convex set of probability measures on X.

  7. Mathematical notation - Wikipedia

    en.wikipedia.org/wiki/Mathematical_notation

    Mathematical notation consists of using symbols for representing operations, unspecified numbers, relations, and any other mathematical objects and assembling them into expressions and formulas. Mathematical notation is widely used in mathematics , science , and engineering for representing complex concepts and properties in a concise ...

  8. ∆ - Wikipedia

    en.wikipedia.org/wiki/%E2%88%86

    Many different mathematical equations include the use of the triangle. Delta (letter) (Δ), a Greek letter also used in mathematics and computer science; Delta baryon (Δ), one of several Baryons consisting of up and down quarks. alt-J (Δ), a British indie band; Laplace operator (Δ), a differential operator; Increment operator (∆)

  9. Delta (letter) - Wikipedia

    en.wikipedia.org/wiki/Delta_(letter)

    Delta (/ ˈ d ɛ l t ə /; [1] uppercase Δ, lowercase δ; Greek: δέλτα, délta, ) [2] is the fourth letter of the Greek alphabet.In the system of Greek numerals, it has a value of four.