more math

[lectures/latex.git] / physics_compact / phys_comp.tex

diff --git a/physics_compact/phys_comp.tex b/physics_compact/phys_comp.tex
index eddfa8f..c82c627 100644 (file)
--- a/physics_compact/phys_comp.tex
+++ b/physics_compact/phys_comp.tex
@@ -8,6 +8,7 @@
 \usepackage[latin1]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage{amsmath}
+\usepackage{amssymb}
 \usepackage{ae}
 \usepackage{aecompl}
 \usepackage[dvips]{graphicx}