
Section 6.2 Introductory remarks about the level 1 operations 201
6.2 Introductory remarks about the level 1 operations
The level 1 operations are designed as building blocks for the operations in the product
sets and interval sets displayed in Figure 1. These operations include, in particular, all
the operations of row 1 of Figure 1 for different roundings, including those operations
which, in a narrower interpretation, are often called floating-point arithmetic. We de-
velop algorithms for these operations in the following sections. To some extent the
details of these algorithms depend on the technology being used.
Tremendous progress in computer