A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Roger W. Sinnott
Date: 2018 Dec 27, 15:23 -0500
I see what you mean, but I don’t see an easy way out of this potential problem unless the barred digit is made more distinctive. It could be made bold, or perhaps colored red, or both. I do think your idea of the bar, either over or under the digit (meaning zeroes or nines, respectively), is a very nice feature.
Here is the 4-place floating-point/5-place fixed-point table.
Personally - I do not like the 36°-to-37° transition: from the underbarred "1" to the regular one, there could be the source for mistakes.
I need an advise to make it 100% fool-proof.