# Angular System **Namespace:** `mp_units::angular` **Module:** `mp_units.systems` **Header:** `` **Secondary Headers:** - `` - `` ## Dimensions | Name | Symbol | |------|:------:| | `dim_angle` | α | ## Quantities | Quantity | Character | Dimension | Kind of | Parent | Equation | Hierarchy | |----------|:---------:|:---------:|:-------:|:------:|----------|:---------:| | angle | Real | α | [angle](#angle) | — | — | [view](../hierarchies/angle.md) | | solid_angle | Real | α² | [solid_angle](#solid_angle) | — | pow<2>([angle](#angle)) | [view](../hierarchies/solid_angle.md) | ## Units | Unit Name | Symbol | unit_symbol | Definition | |-----------|:------:|:-----------:|------------| | degree | ° (deg) | `deg` | mag_ratio<1, 360> * [revolution](#revolution) | | gradian | ᵍ (grad) | `grad` | mag_ratio<1, 400> * [revolution](#revolution) | | radian | rad | `rad` | kind: [angle](#angle) | | revolution | rev | `rev` | mag<2> * [π](core.md#π) * [radian](#radian) | | steradian | sr | `sr` | square([radian](#radian)) |