INTERVALdata types are a non-standard extension to Fortran. However, where possible, the implemented syntax and semantics conform to the style of Fortran. 2.1.1 Character Set Notation Left and right square brackets, "[...]", are added to the Fortran character set to delimit literalINTERVALcons...
Customary notation, such as (–∞) + ( +∞) = –∞ , (–∞) + y = –∞ , and (–∞) + ( +∞) = ℜ∗ , is used, with the understanding that csets are implied when needed. Results for general set (or interval) inputs are the union of the results of the single-point...