HP 3000 Manuals HP 3000 Manuals
Appendix B Intrinsic Functions and Math Subroutines An intrinsic function is a built-in function that returns a single value. A math subroutine is a predefined subroutine that performs a particular mathematical task. Intrinsic functions and math subroutines convert values from one data type to another, perform data manipulation, and also perform basic mathematical functions, such as calculating sines, cosines, and square roots of numbers. This chapter describes the intrinsic functions and predefined math subroutines of HP FORTRAN 77.