3. (30 points) Given the following function, when r is a 1 x 60 vector with linearly spaced values from 0 to 1.7 and 0 is a 1 x 73 vector with linearly spaced values from 0 to 2: I = T COS(0) Y = r sin(0) 2 =-e cos(4x) cos(4y) Evaluate the function at every combination of the given r and vectors. Create two 3D surface plots of z, one using r and as the independent variables, and one using and y as the independent variables. Place the two plots in the same figure using subplot.