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  2. Vector notation - Wikipedia

    en.wikipedia.org/wiki/Vector_notation

    The difference between two vectors u and v can be represented in either ... the following notation is used for the cross product between u and v: [,] Nabla. Vector ...

  3. V - Wikipedia

    en.wikipedia.org/wiki/V

    The first distinction between the letters v and u is recorded in a Gothic script from 1386, where v preceded u . By the mid-16th century, the v form was used to represent the consonant and u the vowel sound, giving us the modern letter v .

  4. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    also called electric potential difference volt (V) volume: cubic meter (m 3) shear force: velocity: meter per second (m/s) weight: newton (N) mechanical work: joule (J) width: meter (m) electrical reactance: ohm (Ω) position vector: meter (m) displacement

  5. Imperial and US customary measurement systems - Wikipedia

    en.wikipedia.org/wiki/Imperial_and_US_customary...

    The US Customary system of units was developed and used in the United States after the American Revolution, based on a subset of the English units used in the Thirteen Colonies; it is the predominant system of units in the United States and in U.S. territories (except for Puerto Rico and Guam, where the metric system, which was introduced when ...

  6. Verification and validation - Wikipedia

    en.wikipedia.org/wiki/Verification_and_validation

    Verification is intended to check that a product, service, or system meets a set of design specifications. [6] [7] In the development phase, verification procedures involve performing special tests to model or simulate a portion, or the entirety, of a product, service, or system, then performing a review or analysis of the modeling results.

  7. Quotient space (linear algebra) - Wikipedia

    en.wikipedia.org/wiki/Quotient_space_(linear...

    If V is finite-dimensional, it follows that the codimension of U in V is the difference between the dimensions of V and U: [6] [7] = ⁡ (/) = ⁡ ⁡ (). Let T : V → W be a linear operator. The kernel of T, denoted ker(T), is the set of all x in V such that Tx = 0. The kernel is a subspace of V. The first isomorphism theorem for vector ...

  8. Comparison of the imperial and US customary measurement ...

    en.wikipedia.org/wiki/Comparison_of_the_imperial...

    This became the US fluid gallon. Both the imperial and US fluid gallon are divided into 4 quarts, 8 pints or 32 gills. [d] However, whereas the US gill is divided into four US fluid ounces, the imperial gill is divided into five imperial fluid ounces. So whilst the imperial gallon, quart, pint and gill are about 20% larger than are their US ...

  9. Voltage - Wikipedia

    en.wikipedia.org/wiki/Voltage

    Voltage, also known as (electrical) potential difference, electric pressure, or electric tension is the difference in electric potential between two points. [ 1 ] [ 2 ] In a static electric field , it corresponds to the work needed per unit of charge to move a positive test charge from the first point to the second point.