diff --git a/resources/links/.ipynb_checkpoints/Angular resolution-checkpoint.md b/resources/links/.ipynb_checkpoints/Angular resolution-checkpoint.md
index 616a3fb..d83233c 100644
--- a/resources/links/.ipynb_checkpoints/Angular resolution-checkpoint.md	
+++ b/resources/links/.ipynb_checkpoints/Angular resolution-checkpoint.md	
@@ -13,7 +13,7 @@
 
 It seems that in astronomy, there is a relationship between the image resolution $\theta$ and the wavelength $\lambda$ giving by
 
-    $$ \theta = 1.22 \frac{\lambda} {D} $$
+$\theta = 1.22 \frac{\lambda} {D}$
 
 - Where $D$ is the diameter of the telescope.
 - to get better resolution (small $\theta$), we need:
diff --git a/resources/links/Angular resolution.md b/resources/links/Angular resolution.md
index 616a3fb..cb55d81 100644
--- a/resources/links/Angular resolution.md	
+++ b/resources/links/Angular resolution.md	
@@ -11,9 +11,11 @@
 
 **_SO THE GOAL BECOMES HOW TO MAKE IMAGES WITH SMALL ANGULAR RESOLUTIONS._**
 
-It seems that in astronomy, there is a relationship between the image resolution $\theta$ and the wavelength $\lambda$ giving by
+It seems that in astronomy, there is a relationship between the image resolution $\theta$ and the wavelength $\lambda$ giving by:
+
+
+$$\theta = 1.22 \frac{\lambda} {D}$$
 
-    $$ \theta = 1.22 \frac{\lambda} {D} $$
 
 - Where $D$ is the diameter of the telescope.
 - to get better resolution (small $\theta$), we need: