From a1a95ba6cfad82d8dfe2f972d5b8f8f8f22a6385 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gerardo=20Marx=20Ch=C3=A1vez-Campos?=
 <gmarx_cc@itmorelia.edu.mx>
Date: Fri, 12 Feb 2021 22:50:49 +0000
Subject: [PATCH] Update 'Readme.md'

---
 Readme.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Readme.md b/Readme.md
index c6be222..1387b49 100644
--- a/Readme.md
+++ b/Readme.md
@@ -17,6 +17,20 @@ Here you can find the highlights of each day lecture, to avoid repetitive points
   * Defining new vars, paragraph spaces, tabulation space, and text sizes
   * A dummy text definition command
 
+
+#### Geometry and Lengths
+##### Units 
+
+| Abbreviation	| Value |
+|pt|	a point is approximately 1/72.27 inch, that means about 0.0138 inch or 0.3515 mm (exactly point is defined as 1/864 of American printer’s foot that is 249/250 of English foot)|
+mm	a millimeter
+cm	a centimeter
+in	inch
+ex	roughly the height of an 'x' (lowercase) in the current font (it depends on the font used)
+em	roughly the width of an 'M' (uppercase) in the current font (it depends on the font used)
+mu	math unit equal to 1/18 em, where em is taken from the math symbols family
+
+
 ### Day 2: Document Classes and Sectional Units ###
 ### Day 3: Equations, Tables and Figures (Marx) ###
 ### Day 4: Plots with PGFPlots package(Marx) ###