A scalar is a one-component quantity that is invariant under rotations of the coordinate system.

See also

Pseudoscalar, Scalar Field, Scalar Function, Scalar Matrix, Scalar Multiplication, Scalar Potential, Scalar Triple Product, Tensor, Vector Explore this topic in the MathWorld classroom

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Jeffreys, H. and Jeffreys, B. S. "Scalars and Vectors." Ch. 2 in Methods of Mathematical Physics, 3rd ed. Cambridge, England: Cambridge University Press, pp. 56-85, 1988.

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Cite this as:

Weisstein, Eric W. "Scalar." From MathWorld--A Wolfram Web Resource.

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