round value and uncertainty in ufloat_to_str().

1 files changed, 2 insertions, 1 deletions

diff --git a/tools.py b/tools.py
index a884db3..1840fae 100644
--- a/tools.py
+++ b/tools.py
@@ -6,7 +6,8 @@ import math
 
 def ufloat_to_str(x):
     msd = -int(math.floor(math.log10(x.std_dev())))
-    return '%.*f +/- %.*f' % (msd, x.nominal_value, msd, x.std_dev())
+    return '%.*f +/- %.*f' % (msd, round(x.nominal_value, msd),
+                              msd, round(x.std_dev(), msd))
 
 def progress(seq):
     "Print progress while iterating over `seq`."