The UsingRule() command returns the name of the current default rounding rule used by ScientificErrorAnalysis.

The returned name includes any defined index.

For more information on predefined rules in ScientificErrorAnalysis, see Predefined Rounding Rules.

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

$\mathrm{e1}≔\mathrm{Quantity}\left(1.2088\,0.563\right)$

$\mathrm{e1}≔\mathrm{Quantity}\left(1.2088\,0.563\right)$

$\mathrm{ApplyRule}\left(\mathrm{e1}\right)$

$\mathrm{Quantity}\left(1.2088\,0.563\right)$

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

$\mathrm{digits}$