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refactor: 💥 ratio hidden as an implementation detail behind mag_ratio

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This commit is contained in:
Mateusz Pusz
2024-04-19 15:29:00 +01:00
parent ae1003b279
commit f90a218705
24 changed files with 126 additions and 129 deletions
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4
docs/users_guide/framework_basics/systems_of_units.md
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@@ -170,14 +170,14 @@ electronvolt:
```cpp
inline constexpr struct minute : named_unit<"min", mag<60> * si::second> {} minute;
inline constexpr struct hour : named_unit<"h", mag<60> * minute> {} hour;
inline constexpr struct electronvolt : named_unit<"eV", mag<ratio{1'602'176'634, 1'000'000'000}> * mag_power<10, -19> * si::joule> {} electronvolt;
inline constexpr struct electronvolt : named_unit<"eV", mag_ratio<1'602'176'634, 1'000'000'000> * mag_power<10, -19> * si::joule> {} electronvolt;
```
Also, units of other [systems of units](../../appendix/glossary.md#system-of-units) are often defined
in terms of scaled versions of the SI units. For example, the international yard is defined as:
```cpp
inline constexpr struct yard : named_unit<"yd", mag<ratio{9'144, 10'000}> * si::metre> {} yard;
inline constexpr struct yard : named_unit<"yd", mag_ratio<9'144, 10'000> * si::metre> {} yard;
```
For some units, a magnitude might also be irrational. The best example here is a `degree` which