NumberOfFaces (Polytopes Package Symbol)

NumberOfFaces[polytope] gives the number of faces of polytope.

NumberOfVertices (Polytopes Package Symbol)

NumberOfVertices[polytope] gives the number of vertices of polytope.

NumberDensity (Standard Atmosphere Package Symbol)

NumberDensity[altitude] gives the total number density of the mixture of neutral atmospheric gas particles at the specified altitude altitude.

PressureScaleHeight (Standard Atmosphere Package Symbol)

PressureScaleHeight[altitude] gives the local pressure scale height of the mixture of gases comprising the atmosphere at the specified altitude altitude.

Angstrom (Units Package Symbol)

Angstrom is a unit of length.

Celsius (Units Package Symbol)

Celsius is a unit of temperature.

Centigrade (Units Package Symbol)

Centigrade is a unit of temperature.

Fahrenheit (Units Package Symbol)

Fahrenheit is a unit of temperature.

GrayDose (Units Package Symbol)

GrayDose is the derived SI unit of absorbed dose of radiation.

Lumerg (Units Package Symbol)

Lumerg is a unit of luminous energy (quantity of light).