Merge branch 'master' of github.com:mpusz/mp-units

docs/users_guide/framework_basics/concepts.md

@@ -165,12 +165,8 @@ A `Reference` can either be:
 
 ### `ReferenceOf<T, V>` { #ReferenceOf }
 
-`ReferenceOf` concept is satisfied by references `T` that match the following value `V`:
-
-| `V`            | Condition                                                                                     |
-|----------------|-----------------------------------------------------------------------------------------------|
-| `Dimension`    | The dimension of a quantity specification satisfies [`DimensionOf<V>`](#DimensionOf) concept. |
-| `QuantitySpec` | The quantity specification satisfies [`QuantitySpecOf<V>`](#QuantitySpecOf) concept.          |
+`ReferenceOf` concept is satisfied by references `T` which have a quantity specification that satisfies
+[`QuantitySpecOf<V>`](#QuantitySpecOf) concept.          |
 
 
 ## `Representation<T>` { #Representation }
@@ -212,7 +208,7 @@ satisfied by all types being or deriving from an instantiation of a `quantity` c
 
 ### `QuantityOf<T, V>` { #QuantityOf }
 
-`QuantityOf` concept is satisfied by all the quantities for which a [`ReferenceOf<V>`](#ReferenceOf)
+`QuantityOf` concept is satisfied by all the quantities for which a [`QuantitySpecOf<V>`](#QuantitySpecOf)
 is `true`.
 
 
@@ -259,10 +255,10 @@ class template.
 
 `QuantityPointOf` concept is satisfied by all the quantity points `T` that match the following value `V`:
 
-| `V`           | Condition                                                                        |
-|---------------|----------------------------------------------------------------------------------|
-| `Reference`   | The quantity point reference satisfies [`ReferenceOf<V>`](#ReferenceOf) concept. |
-| `PointOrigin` | The _point_ and `V` have the same absolute point origin.                         |
+| `V`            | Condition                                                                                           |
+|----------------|-----------------------------------------------------------------------------------------------------|
+| `QuantitySpec` | The quantity point quantity specification satisfies [`QuantitySpecOf<V>`](#QuantitySpecOf) concept. |
+| `PointOrigin`  | The _point_ and `V` have the same absolute point origin.                                            |
 
 
 ## `QuantityLike<T>` { #QuantityLike }

docs/users_guide/framework_basics/dimensionless_quantities.md

@@ -160,6 +160,8 @@ with dimensionless quantities:
 ```cpp
 inline constexpr struct percent : named_unit<"%", mag<ratio{1, 100}> * one> {} percent;
 inline constexpr struct per_mille : named_unit<basic_symbol_text{"‰", "%o"}, mag<ratio(1, 1000)> * one> {} per_mille;
+inline constexpr struct parts_per_million : named_unit<"ppm", mag<ratio(1, 1'000'000)> * one> {} parts_per_million;
+inline constexpr auto ppm = parts_per_million;
 ```
 
 

docs/users_guide/framework_basics/quantity_arithmetics.md

@@ -337,13 +337,13 @@ Among others, we can find there the following:
 - `exp()`,
 - `abs()`,
 - `epsilon()`,
-- `fma()`,
+- `fma()`, `fmod()`,
 - `isfinite()`, `isinf()`, `isnan()`,
 - `floor()`, `ceil()`, `round()`,
 - `inverse()`,
 - `hypot()`,
 - `sin()`, `cos()`, `tan()`,
-- `asin()`, `acos()`, `atan()`.
+- `asin()`, `acos()`, `atan()`, `atan2()`.
 
 In the library, we can also find _mp-units/random.h_ header file with all the pseudo-random number
 generators working on quantity types.