On 17 Dec 2015, at 4:22am, R Smith <rsmith at rsweb.co.za> wrote: > it was a seemingly too-convoluted detour for simply saying: "Don't store > rounded numbers. Round only the results."
I was taught "Round [only] before printing.". These days it would be something like "Round [only] before your API returns to the calling program. Another way to think of it is to ask yourself "At this point, should I be processing reals or integers ?" and to round only when you need to be handling integers. Simon.