From 0985dedd8ffb45019f4e92b0dcc787298ed65cb3 Mon Sep 17 00:00:00 2001
From: Kevin Keogh <kevin.d.keogh@gmail.com>
Date: Mon, 17 Apr 2017 23:52:36 -0400
Subject: [PATCH 1/3] cleanup

---
 src/gbm_mc.c | 1 -
 src/utils.c  | 2 --
 2 files changed, 3 deletions(-)

diff --git a/src/gbm_mc.c b/src/gbm_mc.c
index cdcadd4..1447de7 100644
--- a/src/gbm_mc.c
+++ b/src/gbm_mc.c
@@ -13,7 +13,6 @@ double gbm_simulation(double spot, double rfr, double vol, double tte, double ra
 	drift = (rfr - pow(vol, 2) / 2) * tte;
 	stoch = vol * pow(tte, 0.5) * rand;
 	return spot * exp(drift + stoch);
-
 }
 
 double gbm(double spot, double rfr, double vol, double strike, struct tm expiry,
diff --git a/src/utils.c b/src/utils.c
index aa188c6..716cea3 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -1,5 +1,3 @@
-#define M_SQRT1_2  0.707106781186547524401
-
 #include <math.h>
 #include <stdlib.h>
 

From 5081c3c2b13bd45a71afb51f57291c87aab66289 Mon Sep 17 00:00:00 2001
From: Kevin <kevin.d.keogh@gmail.com>
Date: Sun, 16 Jul 2017 12:19:58 -0400
Subject: [PATCH 2/3] variable name change

---
 src/utils.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils.h b/src/utils.h
index cdc2f14..48363a7 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -1,7 +1,7 @@
 #ifndef UTILS_H
 #define UTILS_H
 
-double normalcdf(double z);
+double normalcdf(double x);
 
 double gaussrand();
 

From 1d71c23f03db30d4862afeaac387f8de497f823f Mon Sep 17 00:00:00 2001
From: Kevin <kevin.d.keogh@gmail.com>
Date: Sun, 16 Jul 2017 20:27:23 -0400
Subject: [PATCH 3/3] Revert "variable name change"

This reverts commit 5081c3c2b13bd45a71afb51f57291c87aab66289.
---
 src/utils.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils.h b/src/utils.h
index 48363a7..cdc2f14 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -1,7 +1,7 @@
 #ifndef UTILS_H
 #define UTILS_H
 
-double normalcdf(double x);
+double normalcdf(double z);
 
 double gaussrand();