On Tue, 5 Feb 2019 20:03:20 -0600 "John R. Strohm" <strohm at airmail.net> wrote: > When you multiplied the problem by two, you got "close enough" that > the error rounded off. I see, proves by the test 123 Enter .123 Enter + 1.231230+E02 <= top of stack Enter + <== double 2.462460+E02 Enter - 0.0 <== good -- Tomas Kral <thomas.kral at email.cz>