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A list of all pages that have property "Description" with value "'''Dimensions''' are defined in the SI {''Quote''}: Physical quantities can be organized in a system of dimensions, where the system used is decided by convention. Each of the seven base quantities used in the SI is regarded as having its own dimension. .. All other quantities, with the exception of [[count]]s, are derived quantities, which may be written in terms of base quantities according to the equations of physics. The dimensions of the derived quantities are written as products of powers of the dimensions of the base quantities using the equations that relate the derived quantities to the base quantities. There are quantities ''Q'' for which the defining equation is such that all of the dimensional exponents in the equation for the dimension of ''Q'' are zero. This is true in particular for any quantity that is defined as the ratio of two quantities of the same kind. .. There are also some quantities that cannot be described in terms of the seven base quantities of the SI, but have the nature of a [[count]]. Examples are a number of molecules, a number of cellular or biomolecular entities (for example copies of a particular nucleic acid sequence), or degeneracy in quantum mechanics. Counting quantities are also quantities with the associated unit one. {''end of Quote'': p 136, [[Bureau International des Poids et Mesures 2019 The International System of Units (SI)]]}". Since there have been only a few results, also nearby values are displayed.

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Dimension + ('''Dimensions''' are defined in the SI {'' … '''Dimensions''' are defined in the SI {''Quote''}: Physical quantities can be organized in a system of dimensions, where the system used is decided by convention. Each of the seven base quantities used in the SI is regarded as having its own dimension. .. All other quantities, with the exception of [[count]]s, are derived quantities, which may be written in terms of base quantities according to the equations of physics. The dimensions of the derived quantities are written as products of powers of the dimensions of the base quantities using the equations that relate the derived quantities to the base quantities.</br></br>There are quantities ''Q'' for which the defining equation is such that all of the dimensional exponents in the equation for the dimension of ''Q'' are zero. This is true in particular for any quantity that is defined as the ratio of two quantities of the same kind. .. There are also some quantities that cannot be described in terms of the seven base quantities of the SI, but have the nature of a [[count]]. Examples are a number of molecules, a number of cellular or biomolecular entities (for example copies of a particular nucleic acid sequence), or degeneracy in quantum mechanics. Counting quantities are also quantities with the associated unit one. {''end of Quote'': p 136, [[Bureau International des Poids et Mesures 2019 The International System of Units (SI)]]}[[Bureau International des Poids et Mesures 2019 The International System of Units (SI)]]})

Dimension +