MATLAB: How to extract specific data from the data files

interpolation

Hello,

CL = [ 0.572526 0.601916 0.631107 ];

CD = [ 0.024868 0.025337 0.025902 ];

How to output the value of CD when CL is 0.6?

I want to use linear interpolation but I don't know how to do.

Thakns for reading.

Best Answer

iwant = interp1(CL,CD,0.6)

This is the procedure:

CL  =   [ 0.572526  0.601916  0.631107 ];
CD = [ 0.024868  0.025337 0.025902 ];
xi = 0.6 ; 
yi = interp1(CL,CD,xi) ; 
plot(CL,CD)
hold on
plot(xi,yi,'*r')