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DESIGN.md : I believe that zero "exponents are elided" rule is a concept of exponent not base-dimension, so have modified parts where exponent rather than base dimension should apply

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Andy Little
2019-12-13 14:10:09 +00:00
committed by Mateusz Pusz
parent 9c0005792c
commit 67262e10ef
1 changed files with 3 additions and 4 deletions
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doc/DESIGN.md
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@@ -132,12 +132,11 @@ struct base_dim_substance : base_dimension<"substance", "mol"> {};
struct base_dim_luminous_intensity : base_dimension<"luminous intensity", "cd"> {}; struct base_dim_luminous_intensity : base_dimension<"luminous intensity", "cd"> {};
``` ```
In order to be able to perform computations on arbitrary sets of base dimensions, an important In order to be able to perform computations on arbitrary sets of exponents, an important
property of `units::dimension` is that its base dimensions: property of `units::dimension` is that its base dimensions:
- are not repeated in a list (each base dimension is provided at most once), - are not repeated in a list (the exponent of each base dimension is provided at most once),
- are consistently ordered, - are consistently ordered,
- having zero exponent are elided. - exponents with ::num of zero are elided
#### `derived_dimension` #### `derived_dimension`