From 0d4bda66c7c6f92409b41459208287dc47bc6d98 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Fri, 20 Dec 2019 14:54:31 -0500
Subject: maybe fixed it

---
 hadamard_pt.hpp | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/hadamard_pt.hpp b/hadamard_pt.hpp
index c658389..f101446 100644
--- a/hadamard_pt.hpp
+++ b/hadamard_pt.hpp
@@ -72,6 +72,8 @@ public:
       std::vector<color> colors(Ms.size(), none);
       std::vector<unsigned> nu(Ms.size(), 0);
       std::vector<unsigned> nd(Ms.size(), 0);
+          colors.front() = down;
+          colors.back() = up;
 
       for (unsigned i = 0; i < n; i++) {
 #pragma omp parallel for
@@ -82,10 +84,16 @@ public:
         for (unsigned j = 0; j < Ms.size() - 1; j++) {
           if (this->step(j, j + 1, true)) {
             std::swap(colors[j], colors[j + 1]);
+          colors.front() = down;
+          colors.back() = up;
+          }
+          if (this->step(Ms.size() - 2 - j, Ms.size() - 1 - j, true)) {
+            std::swap(colors[Ms.size() - 2 - j], colors[Ms.size() - 1 - j]);
+          colors.front() = down;
+          colors.back() = up;
           }
         }
-        colors.front() = down;
-        colors.back() = up;
+
         if (i > n / 2) {
           for (unsigned j = 0; j < Ms.size(); j++) {
             if (colors[j] == up) {
@@ -118,7 +126,7 @@ public:
       std::vector<double> η(Ms.size() - 1);
 
       for (unsigned i = 0; i < Ms.size() - 1; i++) {
-        η[η.size() - i - 1] = sqrt((f[i + 1] - f[i]) / (1 / Ms[i].β - 1 / Ms[i+1].β));
+        η[η.size() - i - 1] = sqrt((f[i + 1] - f[i])) / (1 / Ms[i].β - 1 / Ms[i+1].β);
       }
 
       double C = 0;
-- 
cgit v1.2.3-54-g00ecf