diff --git a/HW1/projectile.m b/HW1/projectile.m
new file mode 100644
index 0000000..0d4ea20
--- /dev/null
+++ b/HW1/projectile.m
@@ -0,0 +1,28 @@
+function [h,t_linear,y] = projectile(v_mag,theta)
+% Function that takes the initial velocity magnitude and the angle of
+% launch of the projectile and calculates the height at 2.37m away from the
+% initial position from an initial height of 1.72m.
+%   Inputs: v_mag, theta
+%   Output: h
+%
+% Also plots the path to a distance of 2.37m.
+
+i = 1;
+x0 = 2.37;
+y0 = 1.72;
+g = -9.81;
+
+t = x0/(v_mag*cos(theta));
+t_linear = 0:0.01:t;
+y = zeros(1,length(t_linear));
+h = y0 + x0/cos(theta) + 0.5*g*(x0/(v_mag*cos(theta)))^2;
+
+for t = t_linear
+    y(i) = y0 + v_mag*t + 0.5*g*t^2;
+    i = i + 1;
+end
+
+plot(t_linear, y)
+
+end
+
diff --git a/HW1/projectile.m~ b/HW1/projectile.m~
new file mode 100644
index 0000000..bed113e
--- /dev/null
+++ b/HW1/projectile.m~
@@ -0,0 +1,26 @@
+function [h,t_linear,y] = projectile(v_mag,theta)
+% Function that takes the initial velocity magnitude and the angle of
+% launch of the projectile and calculates the height at 2.37m away from the
+% initial position from an initial height of 1.72m.
+%   Inputs: v_mag, theta
+%   Output: h
+%
+% Also plots the path to a distance of 2.37m.
+
+x0 = 2.37;
+y0 = 1.72;
+g = -9.81;
+
+t = x0/(v_mag*cos(theta));
+t_linear = 0:0.1:t;
+y = zeros(length(t_linear));
+h = y0 + x0/cos(theta) + 0.5*g*(x0/(v_mag*cos(theta)))^2;
+
+for t = t_linear
+    y() = y0 + v_mag*t + 0.5*g*t^2;
+end
+
+plot(t_linear, y)
+
+end
+
diff --git a/HW1/setdefaults.m b/HW1/setdefaults.m
new file mode 100644
index 0000000..8c3c5c8
--- /dev/null
+++ b/HW1/setdefaults.m
@@ -0,0 +1,3 @@
+set(0, 'defaultAxesFontSize', 16)
+set(0,'defaultTextFontSize',14)
+set(0,'defaultLineLineWidth',3)
diff --git a/HW2/projectile.m b/HW2/projectile.m
new file mode 100644
index 0000000..22bd31d
--- /dev/null
+++ b/HW2/projectile.m
@@ -0,0 +1,6 @@
+function h = projectile(v_mag, theta)
+% Takes an input velocity magnitude and angle and outputs the height of the projectile 2.37 m away from the initial position.
+
+h = 1.72 + 2.37 * sin(theta)/cos(theta) + 1/2*(-9.81)*(2.37/v_mag/cos(theta))^2;
+
+end
diff --git a/extra_credit_1/data.csv b/extra_credit_1/data.csv
index 8e4a5ce..494ccc1 100644
--- a/extra_credit_1/data.csv
+++ b/extra_credit_1/data.csv
@@ -1,3 +1,8 @@
+this data can be found in the pull request for rcc02007/ME3255S2017 data.csv pull requests, and was added here during class
+
 radius (cm), angle (degrees)
-0, 0
-2.25, 62
+6.3, 39
+6.9, 60
+6.3, 100
+7.8, 249
+3.3, 282