Distance from a point to a plane

Usage:

my_dist=distance_point2plane([0,0,50],[100,0,0],[-1,0,0]);
point_projected_on_plane= point-my_dist*planes_normal;


function distance_point2plane(point, planes_origin, planes_normal) =
let (v = point - planes_origin)   
(

v.x * planes_normal.x + 

v.y * planes_normal.y + 
v.z * planes_normal.z

));