scalar

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scalar

scalar quantity or number possessing only sign and magnitude, e.g., the real numbers (see number ), in contrast to vectors and tensors ; scalars obey the rules of elementary algebra. Many physical quantities have scalar values, e.g., length, area, mass, energy, and electric charge. Such quantities as velocity, force, momentum, and spin are vectors and follow different algebraic rules.

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scalar

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

scalar Mathematical quantity that has only a magnitude, as opposed to a vector, which also has direction. Mass, energy, and speed are scalars.

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scalar

A Dictionary of Computing | 2004 | | Â© A Dictionary of Computing 2004, originally published by Oxford University Press 2004. (Hide copyright information) Copyright

scalar A number comprising a single value (such as an integer or real number), as opposed to a complex number (containing two scalars) or a vector (which is a scalar only in the special case of its containing one number).

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JOHN DAINTITH. "scalar." A Dictionary of Computing. 2004. Encyclopedia.com. 5 Dec. 2009 <http://www.encyclopedia.com>.

JOHN DAINTITH. "scalar." A Dictionary of Computing. 2004. Encyclopedia.com. (December 5, 2009). http://www.encyclopedia.com/doc/1O11-scalar.html

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