Given a ScientificConstants object, that is, a Constant() or Element() object, the GetError( sc_obj ) command returns the unit object in the appropriate system of units for the object. For more information about systems of units, see Units/Systems. For more information about unit objects, see Units[Unit].

If the ScientificConstants object has no system of units specified, the current system of units is used for evaluation.

If the ScientificConstants object has a system of units specified, by using the 'system' option, that system of units is used for evaluation.

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

$\mathrm{Constant}\left(c\right)$

$\mathrm{Constant}\left(c\right)$

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

$⟦\frac{m}{s}⟧$

$\mathrm{Units}:-\mathrm{UsingSystem}\left(\right)$

$\mathrm{SI}$

$\mathrm{Constant}\left(c\,\mathrm{system}=\mathrm{CGS}\right)$

${\mathrm{Constant}}_{\mathrm{CGS}}\left(c\right)$

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

$⟦\mathrm{kyne}⟧$

$\mathrm{Element}\left(\mathrm{Na}\,\mathrm{atomicweight}\right)$

$\mathrm{Element}\left(\mathrm{Na}\,\mathrm{atomicweight}\right)$

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

$⟦\mathrm{kg}⟧$

$\mathrm{Element}\left(\mathrm{Na}\,\mathrm{atomicweight}\,\mathrm{system}=\mathrm{CGS}\right)$

${\mathrm{Element}}_{\mathrm{CGS}}\left(\mathrm{Na}\,\mathrm{atomicweight}\right)$

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

$⟦g⟧$