diff --git a/README.md b/README.md
index a7cff3b..f4c0a5d 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ A calculator that lives in your menu bar and keeps a history of your calculation
 **constants**
 
 ```swift
-pi
+pi or π, e
 ```
 
 **infix operators**
@@ -65,6 +65,8 @@ asin(x)
 tan(x)
 atan(x)
 abs(x)
+ln(x)
+log(x)
 
 // Binary functions
 
diff --git a/media/screenshot.png b/media/screenshot.png
index cbe099d..cf5981c 100644
Binary files a/media/screenshot.png and b/media/screenshot.png differ
diff --git a/media/screenshot_window.png b/media/screenshot_window.png
index c69ca3c..32b7f4d 100644
Binary files a/media/screenshot_window.png and b/media/screenshot_window.png differ