IncludeQuantities

is an option for DimensionalCombinations for additional quantities to include in the result.

Details

The following settings can be given for IncludeQuantities:
{quantity₁,quantity₂,…} include a specific list of quantities

"PhysicalConstants" include a standard list of quantities
Any combination of Quantity can be included using IncludeQuantities.
The setting "PhysicalConstants" for IncludeQuantities includes the quantities Quantity["BoltzmannConstant"], Quantity["ElectricConstant"], Quantity["GravitationalConstant"], Quantity["MagneticConstant"], Quantity["PlanckConstant"], and Quantity["SpeedOfLight"].

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Include constants when determining a dimensionless combination:

In[1]:=

Out[1]=

In[2]:=

Out[2]=

	{quantity₁,quantity₂,…}	include a specific list of quantities
	"PhysicalConstants"	include a standard list of quantities