diff --git a/examples/basis.H2.6-31g b/examples/basis.H2.6-31g
new file mode 100644
index 0000000..2a883dc
--- /dev/null
+++ b/examples/basis.H2.6-31g
@@ -0,0 +1,15 @@
+1   2
+S   3
+  1     18.7311370              0.03349460       
+  2      2.8253937              0.23472695       
+  3      0.6401217              0.81375733       
+S   1
+  1      0.1612778              1.0000000
+2   2
+S   3
+  1     18.7311370              0.03349460       
+  2      2.8253937              0.23472695       
+  3      0.6401217              0.81375733       
+S   1
+  1      0.1612778              1.0000000
+
diff --git a/examples/basis.H2.sto-3g b/examples/basis.H2.sto-3g
new file mode 100644
index 0000000..a59a2e4
--- /dev/null
+++ b/examples/basis.H2.sto-3g
@@ -0,0 +1,11 @@
+1   1
+S   3
+  1      3.42525091             0.15432897       
+  2      0.62391373             0.53532814       
+  3      0.16885540             0.44463454
+2   1
+S   3
+  1      3.42525091             0.15432897       
+  2      0.62391373             0.53532814       
+  3      0.16885540             0.44463454
+
diff --git a/examples/basis.He.sto-3g b/examples/basis.He.sto-3g
new file mode 100644
index 0000000..8e5e4d6
--- /dev/null
+++ b/examples/basis.He.sto-3g
@@ -0,0 +1,6 @@
+1   1
+S   3
+  1      6.36242139             0.15432897       
+  2      1.15892300             0.53532814       
+  3      0.31364979             0.44463454
+