I got this prompt and I dont know how to solve it.
function water_vec=water_light_ray_vec(air_vec,refractive_index)normal_vec=[0 0 1];% normal_vec=[0;0;1];
water_vec=(air_vec-normal_vec*(air_vec*normal_vec-sqrt(air_vec*normal_vec-1+refractive_index^2)))/refractive_index ;end
refractive index size is 1.33 1 by 1
normal_vec is [0
0
1]
air_vec is [-0.173230940506992
-0.116707951859014
0.667867059147687]
help will be very appreciated.
Best Answer