From 3932f83720e1401efd8c281cb5818952d059f4b3 Mon Sep 17 00:00:00 2001
From: Andrey Pokidov <andrey.pokidov@gmail.com>
Date: Sat, 23 Nov 2024 01:25:52 +0700
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---
 docs/english/Angle.md    |  7 +++----
 docs/english/Prefixes.md | 10 +++++-----
 docs/russian/Angle.md    | 14 +++++++++-----
 3 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/docs/english/Angle.md b/docs/english/Angle.md
index eb5147c..862d15e 100644
--- a/docs/english/Angle.md
+++ b/docs/english/Angle.md
@@ -4,7 +4,7 @@ There are no structures for angles in the library. The library represents
 angles as floating point numbers of types **float** and **double**.
 
 There are three units of measurement for angles in the library:
-* radians (the full round is equal to 2∏ radians)
+* radians (the full round is equal to 2π radians)
 * degrees (the full round is equal to 360 degrees)
 * turns (the full round is equal to 1 turn)
 
@@ -16,7 +16,6 @@ The units of measurement of angles are defined with an enumerated type:
         BG_ANGLE_UNIT_TURNS   = 3
     } angle_unit_t;
 
-
 * BG_ANGLE_UNIT_RADIANS is for measurement of angles in radians
 * BG_ANGLE_UNIT_DEGREES is for measurement of angles in degrees
 * BG_ANGLE_UNIT_TURNS is for measurement of angles in turns
@@ -28,13 +27,13 @@ There are two ranges of normalized angles: a signed range and an unsigned
 range.
 
 The unsigned range has no negative values. The unsigned range corresponds:
-* [0, 2∏) radians
+* [0, 2π) radians
 * [0, 360) degrees
 * [0, 1) turns
 
 The signed range has both positive and negative values. The signed range
 corresponds:
-* (-∏, ∏] radians
+* (-π, π] radians
 * (-180, 180] degrees
 * (-0.5, 0.5] turns
 
diff --git a/docs/english/Prefixes.md b/docs/english/Prefixes.md
index 3f2772f..4d0292a 100644
--- a/docs/english/Prefixes.md
+++ b/docs/english/Prefixes.md
@@ -4,14 +4,14 @@ The library uses prefixes in names of types, constants and functions.
 
 The main prefix is **BG** which means **B**asic **G**eometry.
 
-The structure types have prefix in the form **Bg**. For example: *BgFP64Vector3*,
-*BgFP32Versor*, *BgFP32Matrix2x2*.
+The structure types have prefix in the form **Bg**. For example: BgFP64Vector3,
+BgFP32Versor, BgFP32Matrix2x2.
 
-The constants have prefix in the form **BG_**. For example: *BG_FP32_EPSYLON*,
-*BG_FP64_TWO_PI*.
+The constants have prefix in the form **BG_**. For example: BG_FP32_EPSYLON,
+BG_FP64_TWO_PI.
 
 The functions have prefix in the form **bg_**. For example:
-*bg_fp32_versor_combine*, *bg_fp64_matrix3x3_subtract*.
+bg_fp32_versor_combine, bg_fp64_matrix3x3_subtract.
 
 A prefix of type follows right after the prefix of the library. The library uses
 two types of floating point numbers: **float** and **double** (**binary32**
diff --git a/docs/russian/Angle.md b/docs/russian/Angle.md
index b41bfa8..a8502db 100644
--- a/docs/russian/Angle.md
+++ b/docs/russian/Angle.md
@@ -5,7 +5,7 @@
 типов **float** и **double**.
 
 В библиотеке есть три единицы измерения уголов:
-* радианы (полный оборот равен 2∏ радиан)
+* радианы (полный оборот равен 2π радиан)
 * градусы (полный оборот равен 360 градусов)
 * обороты (полный оборот равен 1)
 
@@ -17,6 +17,10 @@
         BG_ANGLE_UNIT_TURNS   = 3
     } angle_unit_t;
 
+* BG_ANGLE_UNIT_RADIANS для уголов, измеряемых в радианах
+* BG_ANGLE_UNIT_DEGREES для уголов, измеряемых в градусах
+* BG_ANGLE_UNIT_TURNS для уголов, измеряемых в оборотах
+
 Функции, которые принимают угол в качестве параметра, не требуют, чтобы
 угол принадлежал какому-либо промежутку значений. Но в библиотеке есть
 функции, которые могут нормализовать угол так, чтобы он находился в
@@ -26,13 +30,13 @@
 (unsigned).
 
 Беззнаковый диапазон не содержит отрицательных значений и соответствует:
-[0, 2∏) радиан
-[0, 360) градусов
-[0, 1) оборотов
+* [0, 2π) радиан
+* [0, 360) градусов
+* [0, 1) оборотов
 
 Знаковый диапазон содержит как отрицательные, так и положительные значения.
 Знаковый диапазон соответствует:
-* (-∏, ∏] радиан
+* (-π, π] радиан
 * (-180, 180] градусов
 * (-0,5, 0,5] оборотов