Collection of Treatises on the Occult Sciences

From the number and from this Base result the two columns; for example, if one wished to make a square from this Base, one must have recourse to the multiplication of the right-hand part, and from there one sees that of 13 and 11, with the tenths that remain, they were only lost through the fault of the quadrature and make 2, and this is by the force of the quadrature. That is why if at other times, through the fault of the Base or the difficulty of the numbers, one does not draw the perfection of the names to be completed, it will be necessary to have recourse to this rule of quadrature, so worthy of consideration.

Error of the Quadrature

Moreover, if it should happen sometimes that the numbers of the columns are simple, as 7 and 6 make 13, and 6 and 5 make 11; then one takes the last numbers of the right-hand part: 3 and 1 make 4. Leave the two 1s which make the tenths.