This is done with precision, exactness, accuracy and definitiveness. Precision refers to the exactness of any given measure. Precision measures the exactness of the retrieval process. There are two components to conducting, expressiveness and exactness. As a result, mathematical exactness is not called for and reasonable approximation is acceptable. Sometimes the copyist of the cartulary reproduced the original documents with literal exactness. The 'marcato' indication at the beginning means exactness, rather than a rigidity of rhythm. Favoring exactness, it combats the tendency to promise too much. Hence, by exactness, formula 38 must always be injective. Chapter 3 goes on to elaborate on the methodological concern with exactness. Numbers may have the quality of exactness. When the exactness is not required, the terms at further back can be omitted. Deductions are taken for form and exactness of elements performed. Albert instituted engineering exactness, and modern cost accounting and pricing. By exactness, formula 31, since "f" is the inclusion.