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how can I print rho0_30, rho0_60, and rho0_90 on to my plot next to Cp0_30, Cp0_60, and Cp0_90 respectively.
% Constants
c = 6; % cord lenght in inches
x = [0,0.25,0.5,0.9,1.2,1.2,1.8,2.1,2.4,2.7,3,3.3,3.72,4,4.31,4.62,4.92,5.32]; % my x-axis
x=x';
x_c = x./c; % x-axis
P = 14.364; % psi Measured in room
v_30 = 360; %in/s 30ft/s
v_60 = 720; %in/s 60ft/s
v_90 = 180; %in/s 90ft/s
u = 2.7083*10^-9; % lbf*s/ft^2 this is dynamic viscosity at 75 deg F
% sorce for u http://www.engineeringtoolbox.com/air-absolute-kinematic-viscosity-d_601.html
% FOR ZERO DEGREES
% At 30 ft/s
q_inf0_30 = xlsread('0deg_30fps.xlsx','Sheet1', 'B2'); %=1/2(row)V^2
P_inf0_30 = xlsread('0deg_30fps.xlsx','Sheet1', 'B3:B20');
rho_inf0_30 = (2*q_inf0_30) / (v_30)^2;
Re0_30 = ((rho_inf0_30)*v_30.*x)./u;
Cp0_30 = (P - P_inf0_30)./q_inf0_30;
% At 60 f/s
q_inf0_60 = xlsread('0deg_60fps.xlsx','Sheet1', 'B2'); %=1/2(row)V^2
P_inf0_60 = xlsread('0deg_60fps.xlsx','Sheet1', 'B3:B20');
rho_inf0_60 = (2*q_inf0_60) / (v_60)^2;
Re0_60 = ((rho_inf0_60)*v_60.*x)./u;
Cp0_60 = (P - P_inf0_60)./q_inf0_60;
% At 90 ft/s
q_inf0_90 = xlsread('0deg_90fps.xlsx','Sheet1', 'B2'); %=1/2(row)V^2
P_inf0_90 = xlsread('0deg_90fps.xlsx','Sheet1', 'B3:B20');
rho_inf0_90 = (2*q_inf0_90) / (v_90)^2;
Re0_90 = ((rho_inf0_90)*v_90.*x)./u;
Cp0_90 = (P - P_inf0_90)./q_inf0_90;
figure % All of degre zero
plot(x_c,Cp0_30,'b',x_c,Cp0_60,'r',x_c,Cp0_90,'k')
legend('30 ft/2','60 ft/s', '90 ft/s')
xlabel('X/C') %x-axis lable
ylabel('Cp')
title('At Angle of Attack Zero')
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