Rational Developer for System z
Enterprise PL/I for z/OS, Version 4.2, Compiler and Run-Time Migration Guide

Using OS PL/I Math Routines

Language Environment provides a set of math routines, including routines for exponentiation. For most commonly used routines, Language Environment produces more accurate results than OS PL/I. Some of the Language Environment routines also have better performance than OS PL/I. You should use the Language Environment-provided math routines.

Language Environment also provides the OS PL/I math routines to help you to migrate to Language Environment; however, the OS PL/I math routines are provided for compatibility only and will be withdrawn in the future.

If your application must use the OS PL/I math routines under Language Environment, place SIBMMATH in front of SCEELKED when you link-edit your object module.

Enterprise PL/I for z/OS does not provide the math routines that were in OS PL/I.


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