The GetStructure( struct ) command returns the three interface procedures of the quantity-with-error structure of type struct.

The three interface procedures are returned in an expression sequence.

The first item is the procedure that returns the central value of a quantity-with-error of type struct.

The second item is the procedure that returns the absolute uncertainty of a quantity-with-error of type struct.

The third item is the procedure that returns the identifier of a quantity-with-error of type struct.

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

$\mathrm{GetStructures}\left(\right)\left[1\right]$

$\mathrm{specfunc}\left(\mathrm{anything}\,\mathrm{Quantity}\right)$

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

$x\mapsto \mathrm{op}\left(1\,x\right),x\mapsto \mathrm{op}\left(2\,x\right),x\mapsto {\mathrm{attributes}\left(x\right)}_1$