WP-34S galUS-> l Precision

[Claudio L.]

(09-08-2016 05:02 AM)Joe Horn Wrote:  What we need is the original table of factors which were rounded off to create this table.

Last year I compiled the best definitions (best = exact where possible) for all the units while working on newRPL units module. While it may sound easy, unit conversions without precision loss is no easy task, because you have to define a composite unit in terms of other units (not necessarily base units) which have exact definitions, rather than the same chosen base unit for all. Then you need to evaluate recursively at run time all the operations to determine the conversion factor at the given system precision. This takes both a lot of space and computing power.
I was able to make this work on newRPL after a lot of research to get the proper unit definitions. If anyone is interested, the source code of newRPL has a list of all units supported with their "exact" definitions shown in the comments. But implementing this will probably require more ROM space and computing power than the 34S has available, so don't keep your hopes too high.