dprojectile_dtheta.m

function [ d_h ] = dprojectile_dtheta( v_mag,theta)
%Pojectile (Calculate the height of a dart projectile)
%   Input variables velocity and theta are used to find final height. 
%--------- Assign Constants -----------------------------------------------
d = 2.37;                               %distance to dartboard
h0 = 1.72;                              %initial height of dart
a = 9.81;                               %acceleration due to gravity
%--------- Operations -----------------------------------------------------
vx = v_mag*cosd(theta);                 %calculate x-component of velocity
vy = v_mag*sind(theta);                 %calculate y-component of velocity
x = linspace(0,d,d*100+1);              %create row vector for x values
t = x/vx;                          %calculate time at given x value
dh_vector = vy + (-a)*t;
d_h = dh_vector(238);