I don't think so. There's an extra operation involved here, which means there's an extra place where rounding happens. -1004 is the number 1004 preceded by the prefix minus operation. Using "-1004" instead should produce the same result as the binary minus.
Rick On Mon, Nov 23, 2020 at 6:49 AM Erich Steinböck <erich.steinbo...@gmail.com> wrote: > Different results for a-b and a+(-b) may well be a bug. > > ~~~ > numeric digits 3 > say (1005 - 1004) (1005 + (-1004)) -- 0 10 > ~~~ > > On Mon, Nov 23, 2020 at 11:46 AM WalterPachl <pa...@chello.at> wrote: > >> Thanks >> >> so 370 == ooRexx <> Regina >> >> arithaa >> REXX370 4.02 01 Dec 1998 ooRexx Regina >> -20.98 + 1005 -> 980 980 990 >> 1005-20.98 -> 990 990 990 >> a=-20.98 >> b=1005a arithaa >> REXX370 4.02 01 Dec 1998 ooRexx Regina >> -20.98 + 1005 -> 980 980 990 >> 1005-20.98 -> 990 990 990 >> a=-20.98 >> b=1005 >> a+b -> 980 980 980 >> b+a -> 980 980 980 >> >> Regards >> >> Walter >> > _______________________________________________ > Oorexx-devel mailing list > Oorexx-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/oorexx-devel >
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