Hi, I am having an error using Quiver. Below is my code.
[X,Y] = meshgrid(-1:0.1:1, -1:0.1:1);
syms U_inf Lambda Psi X Y u v
Psi = U_inf*Y+((Lambda/k)*atan(Y/X));
u = diff(Psi,Y);
v = diff (Psi, X);
The error is "Unable to convert expression into double array."
I believe I am not using the syms correctly. Any help is appreciated!