The GetDimensions() function returns an expression sequence of all dimensions.

The opts argument can contain the following equation.

'base'=truefalse

This option specifies whether only base dimensions are returned.  By default, it is set to false.

$\mathrm{with}\left(\mathrm{Units}\right)\:$

Automatically loading the Units[Simple] subpackage

$\mathrm{GetDimensions}\left(\right)$

$\mathrm{absorbed\_dose},\mathrm{acceleration},\mathrm{action},\mathrm{amount\_of\_information},\mathrm{amount\_of\_substance},\mathrm{angular\_acceleration},\mathrm{angular\_jerk},\mathrm{angular\_speed},\mathrm{area},\mathrm{crackle},\mathrm{currency},\mathrm{dose\_equivalent},\mathrm{drop},\mathrm{dynamic\_viscosity},\mathrm{electric\_capacitance},\mathrm{electric\_charge},\mathrm{electric\_conductance},\mathrm{electric\_current},\mathrm{electric\_dipole\_moment},\mathrm{electric\_displacement},\mathrm{electric\_field\_strength},\mathrm{electric\_permittivity},\mathrm{electric\_polarizability},\mathrm{electric\_potential},\mathrm{electric\_resistance},\mathrm{electric\_resistivity},\mathrm{energy},\mathrm{enthalpy},\mathrm{exposure},\mathrm{force},\mathrm{frequency},\mathrm{heat\_capacity},\mathrm{heat\_insulation\_coefficient},\mathrm{heat\_transfer\_coefficient},\mathrm{illuminance},\mathrm{jerk},\mathrm{kinematic\_viscosity},\mathrm{length},\mathrm{linear\_frequency},\mathrm{linear\_mass\_density},\mathrm{lock},\mathrm{logarithmic\_gain},\mathrm{luminous\_flux},\mathrm{luminous\_intensity},\mathrm{luminous\_luminance},\mathrm{magnetic\_dipole\_moment},\mathrm{magnetic\_flux},\mathrm{magnetic\_flux\_density},\mathrm{magnetic\_inductance},\mathrm{magnetic\_permeability},\mathrm{magnetic\_polarizability},\mathrm{magnetizing\_force},\mathrm{mass},\mathrm{mass\_density},\mathrm{molar\_electric\_charge},\mathrm{molar\_energy},\mathrm{moment\_of\_inertia},\mathrm{momentum},\mathrm{plane\_angle},\mathrm{pop},\mathrm{power},\mathrm{pressure},\mathrm{snap},\mathrm{solid\_angle},\mathrm{specific\_heat\_capacity},\mathrm{speed},\mathrm{surface\_energy\_density},\mathrm{surface\_power\_density},\mathrm{thermal\_conductivity},\mathrm{thermodynamic\_temperature},\mathrm{time},\mathrm{torque},\mathrm{volume},\mathrm{volume\_flow}$

$\mathrm{GetDimensions}\left('\mathrm{base}'=\mathrm{true}\right)$

$\mathrm{amount\_of\_information},\mathrm{amount\_of\_substance},\mathrm{currency},\mathrm{electric\_current},\mathrm{length},\mathrm{logarithmic\_gain},\mathrm{luminous\_intensity},\mathrm{mass},\mathrm{thermodynamic\_temperature},\mathrm{time}$