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scalar

scalar

1 7.3
A measured amount shown by one number, not a direction
  • noun
  • /ˈskeɪlər/
  • Specialized
translation icon : escalar
  • So you have a vector in and a scalar out, right?
  • scalar field
  • scalar product
  • scalar coupling

I'll give you an example of a scalar which can be observed.

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Examples

  • This is our scalar projection of B on to A, also written as the component of B along A like that.

  • I'll give you an example of a scalar which can be observed.

  • So first of all, intelligence is not a linear thing that you can measure with a scalar with a single number.

  • We're just replacing scalar quantities with function quantities.

  • We have a scalar cost, we have intermediate variables that here are vectors.

  • Descriptive data are presented in overall percentages of reported responses on scalar and yes/no items.

    Academic text (1994)
  • That is why both torque and angular momentum were treated as scalars and not as vectors.

  • The temperature is a scalar quantity that indicates how hot or cold something is.

  • Mass is an example of a scalar that only provides the amount of matter in an object.

  • In physics, speed is often treated as a scalar because it has no direction, only magnitude.

Antonyms

vector
  • Specialized
50 4.9

A measurement with size and direction that shows force or movement

Compounds

scalar field
  • Specialized
1 9.3

A single number at every point in space, like temperature

scalar matrix
  • Specialized
8.2

A square grid of numbers with the same values on the main diagonal and zeros elsewhere

scalar product
  • Specialized
7.0

A single number you get by multiplying pairs of numbers from two vectors and adding them

Surface Forms

scalar singular
scalars plural

Morphology

scalar = scalar (opaque) = scale + ar

The noun is a conversion of the adjective 'scalar', but the mathematical noun sense is technical and only partly predictable from the base adjective.

Etymology

Scalar comes from the Latin word scala meaning 'ladder' and is related to the English word scale; think of a scalar as one single step or number on that ladder, not a direction, so a scalar is a quantity with only size, like mass or temperature.