Scalar

Scalar may refer to:

• Scalar (mathematics), an element of a field, which is used to define a vector space, usually the field of real numbers
• Scalar (physics), a physical quantity that can be described by a single element of a number field such as a real number
• Lorentz scalar, a quantity in the theory of relativity which is invariant under a Lorentz transformation
• Pseudoscalar, a quantity that behaves like a scalar, except that it changes sign under a parity inversion
• Scalar (computing), any non-composite value
• Scalar boson, in physics, a boson subatomic particle whose spin equals zero

• dot product, also known as scalar product
• dimensionless quantity, also known as scalar quantity
• Inner product space
• Scalar field
• Scale (music)
• Scaler (disambiguation)
• Pterophyllum scalare (Lichtenstein, 1823), a species of freshwater angelfish
• Scala (disambiguation)