From aee6cf944f8d48116a31350cfbc3442c714db0d1 Mon Sep 17 00:00:00 2001
From: Alejandro Mota <amota@sandia.gov>
Date: Thu, 27 Aug 2020 17:22:31 -0700
Subject: [PATCH] Piro: Trapezoid rule: fix error in time step.

---
 packages/piro/src/Piro_TrapezoidRuleSolver_Def.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/piro/src/Piro_TrapezoidRuleSolver_Def.hpp b/packages/piro/src/Piro_TrapezoidRuleSolver_Def.hpp
index ce290663c029..2ee098291efe 100644
--- a/packages/piro/src/Piro_TrapezoidRuleSolver_Def.hpp
+++ b/packages/piro/src/Piro_TrapezoidRuleSolver_Def.hpp
@@ -91,7 +91,7 @@ TrapezoidRuleSolver(const Teuchos::RCP<Teuchos::ParameterList> &appParams_,
   numTimeSteps = trPL->get("Num Time Steps", 10);
   t_final = trPL->get("Final Time", 0.1);
   t_init  = trPL->get("Initial Time", 0.0);
-  delta_t = t_final / numTimeSteps;
+  delta_t = (t_final - t_init) / numTimeSteps;
 
   *out << "\nB) Using Trapezoid Decorator and NOX Solver\n";