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Unit conversions with additive factor #1064
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Suggestion: |
This idea to include additional info (like equations and uncertainty) in the CSV files would also apply to the physical constants case in a future development. Indeed, the db48 platform (with its adjustable precision) provides the best imaginable tool to calculate physical quantities with the sufficient and maximum precision available. We have to remind that since 2019, the SI unit system was completely redefined and finally unified with this precise goal in mind. We have now precisely defined fundamental constants (like c, NA, h, e, etc.) and secondary ones which depend directly (through defining equations) on the former and on some precise measurement (of given constants and their actual uncertainty). For instance the magnetic permeability (μo ± Δμo) depends strictly on the measured value the affine structure constant (α ± Δα). The relevant equations are : There is no such hand-calculator to date (besides Maple or Mathematica which are heavy duty and cumbersome tools). And we have this unique opportunity to create one. I might be able to provide the relevant equations if you are interested (I already have a working prototype in Excel). And you will understand my personal interests for random numbers, uncertainty evaluation, error propagation (under given prob. distr.) and interval arithmetic. |
We need a way to implement conversions with an additive factors, e.g. Kelvin to Celsius and conversely.
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