remove cos change to address one problem at a time

Signed-off-by: Arjo Chakravarty <[email protected]>
gazebosim · Dec 26, 2023 · 67850c4 · 67850c4
1 parent ae85a48
commit 67850c4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/systems/lift_drag/LiftDrag.cc b/src/systems/lift_drag/LiftDrag.cc
@@ -328,7 +328,7 @@ void LiftDragPrivate::Update(EntityComponentManager &_ecm)
       spanwiseI.Dot(velI), minRatio, maxRatio);
 
   // get cos from trig identity
-  double cosSweepAngle = 1.0 - sinSweepAngle * sinSweepAngle;
+  double cosSweepAngle = sqrt(1.0 - sinSweepAngle * sinSweepAngle);
   double sweep = std::asin(sinSweepAngle);
 
   // truncate sweep to within +/-90 deg