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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." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"scalar." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/scalar

"scalar." The Columbia Encyclopedia, 6th ed.. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/scalar

## scalar

sca·lar / ˈskālər/ Math. Physics • adj. Math. & Physics (of a quantity) having only magnitude, not direction. • n. Math. & Physics a scalar quantity. Compare with vector (sense 1).

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"scalar." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"scalar." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/scalar

"scalar." The Oxford Pocket Dictionary of Current English. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/scalar

## scalar

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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"scalar." A Dictionary of Computing. . Encyclopedia.com. 15 Dec. 2017 <http://www.encyclopedia.com>.

"scalar." A Dictionary of Computing. . Encyclopedia.com. (December 15, 2017). http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/scalar

"scalar." A Dictionary of Computing. . Retrieved December 15, 2017 from Encyclopedia.com: http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/scalar

## scalar

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