Class DIMENSIONLESS-QUANTITY

• Defined in theory: Physical-quantities
• Source code: physical-quantities.lisp

Slots on this class:

Documentation:

Although it sounds contradictory, a dimensionless-quantity is a quantity whose dimension is the identity-dimension. All numeric tensors, including real numbers, are nondimensional quantities.

Subclass-Of: Constant-quantity

Superclass-Of: Real-number

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Slots on instances of this class:

Quantity.Dimension: Identity-dimension

Axioms:

(<=> (Dimensionless-Quantity ?X)
     (And (Constant-Quantity ?X)
          (= (Quantity.Dimension ?X) Identity-Dimension)))

Notes:

• Formerly-Named: nondimensional-constant-quantity