How Open XL Fortran rounds floating-point calculations

Understanding rounding operations in Open XL Fortran can help you get predictable, consistent results. It can also help you make informed decisions when you have to make tradeoffs between speed and accuracy.

In general, floating-point results from Open XL Fortran programs are more accurate than those from other implementations because of MAF operations and the higher precision used for intermediate results. If identical results are more important to you than the extra precision and performance of the Open XL Fortran defaults, read Duplicating the floating-point results of other systems.