changeset 789:3666342dabe2 dev

minor changes
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Wed, 30 Mar 2016 15:39:53 -0400
parents 5b970a5bc233
children 944949c8ef3e
files python/traffic_engineering.py
diffstat 1 files changed, 4 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/python/traffic_engineering.py	Thu Mar 24 16:37:37 2016 -0400
+++ b/python/traffic_engineering.py	Wed Mar 30 15:39:53 2016 -0400
@@ -260,7 +260,9 @@
 #########################
 
 def timeChangingSpeed(v0, vf, a, TPR):
-    return TPR+(vf-v0)/a
+    'for decelerations, a < 0'
+    return TPR-(vf-v0)/a
 
 def distanceChangingSpeed(v0, vf, a, TPR):
-    return TPR*v0+(vf*vf-v0*v0)/(2*a)
+    'for decelerations, a < 0'
+    return TPR*v0-(vf**2-v0**2)/(2*a)