Trying to do calculations for density

%% Variables
% Input
%   P_t - Total pressure [atm]
%   P_s - Surface pressure [atm]
%   H - Height [ft]
   
% Output
%   rho - Density [kg/m^3]

% Other  
%   g - Gravity [m/s^2]

% Write your entire function code below here (Including header)
 
function [Rho] = RQ16_18(P_t,P_s,H) % The order of input variables should be Total Pressure, Surface Pressure, and Height

% Constants
P_t=4;
P_s=3;
H=25;
% Calculations

H = H/3.281; %Convert Ft to Meters
Tp = P_t * 101325; %Convert Atm to Pascals
Sp = P_s * 101325; %Convert Atm to Pascals
g = 9.8; %gravity 
Rho = (Tp - Sp)/(g*H); %Density
end

I am trying to get the density and its defined as Rho however when matlab grader grades it it says the value is wrong. Am I missing a conversion? or Caluclation?

Answer 1

[James Tursa]

Why do you have these lines in your function:

P_t=4;
P_s=3;
H=25;

Aren't these variable supposed to be input arguments? Seems like you should delete these lines since they overwrite the input arguments.

[Sean St Cyr]

Oh my gosh, Thank you, I was completely overlooking those, just needed a another set of eyes