1 files changed, 6 insertions, 0 deletions
diff --git a/psr/useful_constants.m b/psr/useful_constants.m
new file mode 100644
index 0000000..82d1d1a
--- /dev/null
+++ b/psr/useful_constants.m
@@ -0,0 +1,6 @@
+1;
+
+% some physical constants
+hbar=1;
+im_one=0+1i;
+el_charge=1;